211431412122 has 48 divisors (see below), whose sum is σ = 498640082112. Its totient is φ = 59581448640.

The previous prime is 211431412111. The next prime is 211431412133. The reversal of 211431412122 is 221214134112.

It is an interprime number because it is at equal distance from previous prime (211431412111) and next prime (211431412133).

It is a junction number, because it is equal to n+sod(n) for n = 211431412092 and 211431412101.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4904254 + ... + 4947177.

It is an arithmetic number, because the mean of its divisors is an integer number (10388335044).

Almost surely, 2^211431412122 is an apocalyptic number.

211431412122 is an abundant number, since it is smaller than the sum of its proper divisors (287208669990).

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

211431412122 is a wasteful number, since it uses less digits than its factorization.

211431412122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9851523 (or 9851516 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

Adding to 211431412122 its reverse (221214134112), we get a palindrome (432645546234).

The spelling of 211431412122 in words is "two hundred eleven billion, four hundred thirty-one million, four hundred twelve thousand, one hundred twenty-two".