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12202011021220 = 2251932110555319
BaseRepresentation
bin1011000110010000000010…
…0010000100111110100100
31121012111112010110020210021
42301210000202010332210
53044404204310134340
641541305415204524
72366365131243106
oct261440042047644
947174463406707
1012202011021220
113984931130009
1214509b8976744
136a684c544737
1430281abc7576
15162607bd2e4a
hexb1900884fa4

12202011021220 has 24 divisors (see below), whose sum is σ = 26972866468800. Its totient is φ = 4623919965792.

The previous prime is 12202011021197. The next prime is 12202011021241. The reversal of 12202011021220 is 2212011020221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12202011021194 and 12202011021203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16055277280 + ... + 16055278039.

It is an arithmetic number, because the mean of its divisors is an integer number (1123869436200).

Almost surely, 212202011021220 is an apocalyptic number.

12202011021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202011021220 is an abundant number, since it is smaller than the sum of its proper divisors (14770855447580).

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

12202011021220 is a wasteful number, since it uses less digits than its factorization.

12202011021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32110555347 (or 32110555345 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12202011021220 its reverse (2212011020221), we get a palindrome (14414022041441).

Subtracting from 12202011021220 its reverse (2212011020221), we obtain a palindrome (9990000000999).

The spelling of 12202011021220 in words is "twelve trillion, two hundred two billion, eleven million, twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 32110555319 64221110638 128442221276 160552776595 321105553190 610100551061 642211106380 1220201102122 2440402204244 3050502755305 6101005510610 12202011021220