231021102212219 has 18 divisors (see below), whose sum is σ = 262387887646500. Its totient is φ = 203244371345400.

The previous prime is 231021102212179. The next prime is 231021102212261. The reversal of 231021102212219 is 912212201120132.

It is not a de Polignac number, because 231021102212219 - 2²⁴ = 231021085435003 is a prime.

It is a super-2 number, since 2×231021102212219² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231021102212191 and 231021102212200.

It is not an unprimeable number, because it can be changed into a prime (231021102212279) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 993257969 + ... + 993490530.

It is an arithmetic number, because the mean of its divisors is an integer number (14577104869250).

Almost surely, 2^{231021102212219} is an apocalyptic number.

231021102212219 is a deficient number, since it is larger than the sum of its proper divisors (31366785434281).

231021102212219 is a wasteful number, since it uses less digits than its factorization.

231021102212219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986748583 (or 1986748541 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 231021102212219 in words is "two hundred thirty-one trillion, twenty-one billion, one hundred two million, two hundred twelve thousand, two hundred nineteen".