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2102011011212 = 227404991853671
BaseRepresentation
bin11110100101101001100…
…111101010000010001100
321102221122202120010222112
4132211221213222002030
5233414404304324322
64245352303003152
7304602535536020
oct36455147520214
97387582503875
102102011011212
11740504464422
1229b4732994b8
131232ac8a5078
1473a48a34380
1539a28a525e2
hex1e9699ea08c

2102011011212 has 24 divisors (see below), whose sum is σ = 4204128096000. Its totient is φ = 900839131920.

The previous prime is 2102011011187. The next prime is 2102011011227. The reversal of 2102011011212 is 2121101102012.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 207137 + ... + 2060807.

It is an arithmetic number, because the mean of its divisors is an integer number (175172004000).

Almost surely, 22102011011212 is an apocalyptic number.

It is an amenable number.

2102011011212 is an abundant number, since it is smaller than the sum of its proper divisors (2102117084788).

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

2102011011212 is a wasteful number, since it uses less digits than its factorization.

2102011011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894181 (or 1894179 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2102011011212 its reverse (2121101102012), we get a palindrome (4223112113224).

The spelling of 2102011011212 in words is "two trillion, one hundred two billion, eleven million, eleven thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 40499 80998 161996 283493 566986 1133972 1853671 3707342 7414684 12975697 25951394 51902788 75071821829 150143643658 300287287316 525502752803 1051005505606 2102011011212