213112001022 has 16 divisors (see below), whose sum is σ = 428365833600. Its totient is φ = 70680361752.

The previous prime is 213112001017. The next prime is 213112001023. The reversal of 213112001022 is 220100211312.

It is a junction number, because it is equal to n+sod(n) for n = 213112000992 and 213112001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213112001023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89241688 + ... + 89244075.

It is an arithmetic number, because the mean of its divisors is an integer number (26772864600).

Almost surely, 2^213112001022 is an apocalyptic number.

213112001022 is an abundant number, since it is smaller than the sum of its proper divisors (215253832578).

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

213112001022 is a wasteful number, since it uses less digits than its factorization.

213112001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178485967.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 213112001022 its reverse (220100211312), we get a palindrome (433212212334).

The spelling of 213112001022 in words is "two hundred thirteen billion, one hundred twelve million, one thousand, twenty-two".