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2021232200020 = 2251114876178493
BaseRepresentation
bin11101011010011010110…
…100111100100101010100
321011020011010222100212121
4131122122310330211110
5231103440420400040
64144312524425324
7266013006140605
oct35323264744524
97136133870777
102021232200020
1170a221979a30
1228788a6a8244
131187a82c8937
146db84687dac
153789bee4c4a
hex1d69ad3c954

2021232200020 has 48 divisors (see below), whose sum is σ = 4633573932288. Its totient is φ = 734499128960.

The previous prime is 2021232200003. The next prime is 2021232200051. The reversal of 2021232200020 is 200022321202.

It is a junction number, because it is equal to n+sod(n) for n = 2021232199967 and 2021232200003.

It is a congruent number.

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, 2762107 + ... + 3416386.

It is an arithmetic number, because the mean of its divisors is an integer number (96532790256).

Almost surely, 22021232200020 is an apocalyptic number.

2021232200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021232200020 is an abundant number, since it is smaller than the sum of its proper divisors (2612341732268).

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

2021232200020 is a wasteful number, since it uses less digits than its factorization.

2021232200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180000 (or 6179998 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 2021232200020 its reverse (200022321202), we get a palindrome (2221254521222).

The spelling of 2021232200020 in words is "two trillion, twenty-one billion, two hundred thirty-two million, two hundred thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1487 2974 5948 7435 14870 16357 29740 32714 65428 81785 163570 327140 6178493 12356986 24713972 30892465 61784930 67963423 123569860 135926846 271853692 339817115 679634230 1359268460 9187419091 18374838182 36749676364 45937095455 91874190910 101061610001 183748381820 202123220002 404246440004 505308050005 1010616100010 2021232200020