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2211210202012 = 227281281038409
BaseRepresentation
bin100000001011010110011…
…001100000101110011100
321211101112001002210122121
4200023112121200232130
5242212024302431022
64411452124352324
7315516564412540
oct40132631405634
97741461083577
102211210202012
11782850570749
122b86699a56a4
131306931c7976
147904771ba20
153c7ba6b32c7
hex202d6660b9c

2211210202012 has 24 divisors (see below), whose sum is σ = 4438158570720. Its totient is φ = 944289050880.

The previous prime is 2211210202009. The next prime is 2211210202037. The reversal of 2211210202012 is 2102020121122.

It is a happy number.

It is a congruent number.

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, 140511337 + ... + 140527072.

It is an arithmetic number, because the mean of its divisors is an integer number (184923273780).

Almost surely, 22211210202012 is an apocalyptic number.

It is an amenable number.

2211210202012 is an abundant number, since it is smaller than the sum of its proper divisors (2226948368708).

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

2211210202012 is a wasteful number, since it uses less digits than its factorization.

2211210202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281038701 (or 281038699 counting only the distinct ones).

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

Adding to 2211210202012 its reverse (2102020121122), we get a palindrome (4313230323134).

The spelling of 2211210202012 in words is "two trillion, two hundred eleven billion, two hundred ten million, two hundred two thousand, twelve".

Divisors: 1 2 4 7 14 28 281 562 1124 1967 3934 7868 281038409 562076818 1124153636 1967268863 3934537726 7869075452 78971792929 157943585858 315887171716 552802550503 1105605101006 2211210202012