213101122 has 16 divisors (see below), whose sum is σ = 344558592. Its totient is φ = 98263440.

The previous prime is 213101087. The next prime is 213101123. The reversal of 213101122 is 221101312.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (213101123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30847 + ... + 37117.

It is an arithmetic number, because the mean of its divisors is an integer number (21534912).

Almost surely, 2^213101122 is an apocalyptic number.

213101122 is a deficient number, since it is larger than the sum of its proper divisors (131457470).

213101122 is a wasteful number, since it uses less digits than its factorization.

213101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 213101122 is about 14597.9834908798. The cubic root of 213101122 is about 597.3037556299.

Adding to 213101122 its reverse (221101312), we get a palindrome (434202434).

The spelling of 213101122 in words is "two hundred thirteen million, one hundred one thousand, one hundred twenty-two".