231211112220322 has 32 divisors (see below), whose sum is σ = 375741528930432. Its totient is φ = 106070954056704.

The previous prime is 231211112220307. The next prime is 231211112220337. The reversal of 231211112220322 is 223022211112132.

It is an interprime number because it is at equal distance from previous prime (231211112220307) and next prime (231211112220337).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164238658 + ... + 165640450.

It is an arithmetic number, because the mean of its divisors is an integer number (11741922779076).

Almost surely, 2^{231211112220322} is an apocalyptic number.

231211112220322 is a deficient number, since it is larger than the sum of its proper divisors (144530416710110).

231211112220322 is a wasteful number, since it uses less digits than its factorization.

231211112220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439962.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 231211112220322 its reverse (223022211112132), we get a palindrome (454233323332454).

The spelling of 231211112220322 in words is "two hundred thirty-one trillion, two hundred eleven billion, one hundred twelve million, two hundred twenty thousand, three hundred twenty-two".