213113122 has 16 divisors (see below), whose sum is σ = 339282432. Its totient is φ = 100048960.

The previous prime is 213113111. The next prime is 213113137. The reversal of 213113122 is 221311312.

213113122 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213113096 and 213113105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7383 + ... + 21925.

It is an arithmetic number, because the mean of its divisors is an integer number (21205152).

Almost surely, 2^213113122 is an apocalyptic number.

213113122 is a deficient number, since it is larger than the sum of its proper divisors (126169310).

213113122 is a wasteful number, since it uses less digits than its factorization.

213113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14993.

The product of its digits is 72, while the sum is 16.

The square root of 213113122 is about 14598.3945007662. The cubic root of 213113122 is about 597.3149670687.

Adding to 213113122 its reverse (221311312), we get a palindrome (434424434).

It can be divided in two parts, 21311312 and 2, that multiplied together give a palindrome (42622624).

The spelling of 213113122 in words is "two hundred thirteen million, one hundred thirteen thousand, one hundred twenty-two".