902112111211211 has 4 divisors (see below), whose sum is σ = 902117515868400. Its totient is φ = 902106706554024.

The previous prime is 902112111211189. The next prime is 902112111211243. The reversal of 902112111211211 is 112112111211209.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-902112111211211 is a prime.

It is a super-2 number, since 2×902112111211211² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (902112111211291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702078216 + ... + 2702412053.

It is an arithmetic number, because the mean of its divisors is an integer number (225529378967100).

Almost surely, 2^{902112111211211} is an apocalyptic number.

902112111211211 is a deficient number, since it is larger than the sum of its proper divisors (5404657189).

902112111211211 is a wasteful number, since it uses less digits than its factorization.

902112111211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404657188.

The product of its (nonzero) digits is 144, while the sum is 26.

The spelling of 902112111211211 in words is "nine hundred two trillion, one hundred twelve billion, one hundred eleven million, two hundred eleven thousand, two hundred eleven".