213122231210 has 48 divisors (see below), whose sum is σ = 448745067360. Its totient is φ = 72662234400.

The previous prime is 213122231197. The next prime is 213122231219. The reversal of 213122231210 is 12132221312.

It is not an unprimeable number, because it can be changed into a prime (213122231219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1127216 + ... + 1302635.

It is an arithmetic number, because the mean of its divisors is an integer number (9348855570).

Almost surely, 2^213122231210 is an apocalyptic number.

213122231210 is an abundant number, since it is smaller than the sum of its proper divisors (235622836150).

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

213122231210 is a wasteful number, since it uses less digits than its factorization.

213122231210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430051 (or 2430044 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 213122231210 its reverse (12132221312), we get a palindrome (225254452522).

It can be divided in two parts, 21312 and 2231210, that added together give a palindrome (2252522).

The spelling of 213122231210 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred thirty-one thousand, two hundred ten".