213210020031222 has 32 divisors (see below), whose sum is σ = 431221971853440. Its totient is φ = 70269724324800.

The previous prime is 213210020031157. The next prime is 213210020031257. The reversal of 213210020031222 is 222130020012312.

It is a congruent number.

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, 16686597 + ... + 26549247.

It is an arithmetic number, because the mean of its divisors is an integer number (13475686620420).

Almost surely, 2^{213210020031222} is an apocalyptic number.

213210020031222 is an abundant number, since it is smaller than the sum of its proper divisors (218011951822218).

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

213210020031222 is a wasteful number, since it uses less digits than its factorization.

213210020031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9903228.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 213210020031222 its reverse (222130020012312), we get a palindrome (435340040043534).

The spelling of 213210020031222 in words is "two hundred thirteen trillion, two hundred ten billion, twenty million, thirty-one thousand, two hundred twenty-two".