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10201202201220 = 2235311954511073
BaseRepresentation
bin1001010001110010011100…
…0010001001001010000100
31100010020002022200002100220
42110130213002021022010
52314114030230414340
633410211222304340
72102004205005162
oct224344702111204
940106068602326
1010201202201220
11328333a774848
121189089b880b0
1358cc7a55ca64
14273a52b54232
1512a553bd9ed0
hex94727089284

10201202201220 has 48 divisors (see below), whose sum is σ = 28572524547840. Its totient is φ = 2719448359936.

The previous prime is 10201202201213. The next prime is 10201202201233. The reversal of 10201202201220 is 2210220210201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10201202201220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27068397 + ... + 27442676.

It is an arithmetic number, because the mean of its divisors is an integer number (595260928080).

Almost surely, 210201202201220 is an apocalyptic number.

10201202201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201202201220 is an abundant number, since it is smaller than the sum of its proper divisors (18371322346620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10201202201220 is a wasteful number, since it uses less digits than its factorization.

10201202201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54514204 (or 54514202 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10201202201220 its reverse (2210220210201), we get a palindrome (12411422411421).

The spelling of 10201202201220 in words is "ten trillion, two hundred one billion, two hundred two million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3119 6238 9357 12476 15595 18714 31190 37428 46785 62380 93570 187140 54511073 109022146 163533219 218044292 272555365 327066438 545110730 654132876 817666095 1090221460 1635332190 3270664380 170020036687 340040073374 510060110061 680080146748 850100183435 1020120220122 1700200366870 2040240440244 2550300550305 3400400733740 5100601100610 10201202201220