211321313022 has 16 divisors (see below), whose sum is σ = 422664051600. Its totient is φ = 70436866752.

The previous prime is 211321312987. The next prime is 211321313023. The reversal of 211321313022 is 220313123112.

It is a self number, because there is not a number n which added to its sum of digits gives 211321313022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211321313023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763063 + ... + 1002450.

It is an arithmetic number, because the mean of its divisors is an integer number (26416503225).

Almost surely, 2^211321313022 is an apocalyptic number.

211321313022 is an abundant number, since it is smaller than the sum of its proper divisors (211342738578).

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

211321313022 is a wasteful number, since it uses less digits than its factorization.

211321313022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785467.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211321313022 its reverse (220313123112), we get a palindrome (431634436134).

The spelling of 211321313022 in words is "two hundred eleven billion, three hundred twenty-one million, three hundred thirteen thousand, twenty-two".