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2121112010202 = 232838712453541
BaseRepresentation
bin11110110111011100001…
…000001011110111011010
321111202221221110102200120
4132313130020023313122
5234223014133311302
64302231515414110
7306150063414513
oct36673410136732
97452857412616
102121112010202
117486164836a9
122a3104154336
13125034c45c33
147493b77da0a
153a2958dc9bc
hex1eddc20bdda

2121112010202 has 16 divisors (see below), whose sum is σ = 4242373803552. Its totient is φ = 707012372880.

The previous prime is 2121112010191. The next prime is 2121112010203. The reversal of 2121112010202 is 2020102111212.

It is not an unprimeable number, because it can be changed into a prime (2121112010203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6056449 + ... + 6397092.

It is an arithmetic number, because the mean of its divisors is an integer number (265148362722).

Almost surely, 22121112010202 is an apocalyptic number.

2121112010202 is an abundant number, since it is smaller than the sum of its proper divisors (2121261793350).

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

2121112010202 is a wasteful number, since it uses less digits than its factorization.

2121112010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12481933.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2121112010202 its reverse (2020102111212), we get a palindrome (4141214121414).

The spelling of 2121112010202 in words is "two trillion, one hundred twenty-one billion, one hundred twelve million, ten thousand, two hundred two".

Divisors: 1 2 3 6 28387 56774 85161 170322 12453541 24907082 37360623 74721246 353518668367 707037336734 1060556005101 2121112010202