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1002020210220 = 223597172168421
BaseRepresentation
bin11101001010011010000…
…11110000011000101100
310112210101111210201220210
432211031003300120230
5112404114133211340
62044153254342420
7132251665153521
oct16451503603054
93483344721823
101002020210220
11356a55316817
1214224665aa10
137364a99abc3
14366d8883148
151b0e8cbc180
hexe94d0f062c

1002020210220 has 48 divisors (see below), whose sum is σ = 2834580899808. Its totient is φ = 264450693120.

The previous prime is 1002020210111. The next prime is 1002020210251. The reversal of 1002020210220 is 220120202001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1002020210196 and 1002020210205.

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, 86078391 + ... + 86090030.

It is an arithmetic number, because the mean of its divisors is an integer number (59053768746).

Almost surely, 21002020210220 is an apocalyptic number.

1002020210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002020210220 is an abundant number, since it is smaller than the sum of its proper divisors (1832560689588).

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

1002020210220 is a wasteful number, since it uses less digits than its factorization.

1002020210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172168530 (or 172168528 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1002020210220 its reverse (220120202001), we get a palindrome (1222140412221).

The spelling of 1002020210220 in words is "one trillion, two billion, twenty million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 97 194 291 388 485 582 970 1164 1455 1940 2910 5820 172168421 344336842 516505263 688673684 860842105 1033010526 1721684210 2066021052 2582526315 3443368420 5165052630 10330105260 16700336837 33400673674 50101010511 66801347348 83501684185 100202021022 167003368370 200404042044 250505052555 334006736740 501010105110 1002020210220