122011021210 has 16 divisors (see below), whose sum is σ = 236513672136. Its totient is φ = 45050223168.

The previous prime is 122011021199. The next prime is 122011021211. The reversal of 122011021210 is 12120110221.

It can be written as a sum of positive squares in 4 ways, for example, as 111939092329 + 10071928881 = 334573^2 + 100359^2 .

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 (122011021211) 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, 469273029 + ... + 469273288.

Almost surely, 2^122011021210 is an apocalyptic number.

122011021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122011021210 is a deficient number, since it is larger than the sum of its proper divisors (114502650926).

122011021210 is a wasteful number, since it uses less digits than its factorization.

122011021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938546337.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122011021210 its reverse (12120110221), we get a palindrome (134131131431).

The spelling of 122011021210 in words is "one hundred twenty-two billion, eleven million, twenty-one thousand, two hundred ten".