122100111210 has 128 divisors (see below), whose sum is σ = 373845694464. Its totient is φ = 24781397760.

The previous prime is 122100111193. The next prime is 122100111241. The reversal of 122100111210 is 12111001221.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 515289 + ... + 713948.

It is an arithmetic number, because the mean of its divisors is an integer number (2920669488).

Almost surely, 2^122100111210 is an apocalyptic number.

122100111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122100111210 is an abundant number, since it is smaller than the sum of its proper divisors (251745583254).

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

122100111210 is a wasteful number, since it uses less digits than its factorization.

122100111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229308.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 122100111210 its reverse (12111001221), we get a palindrome (134211112431).

It can be divided in two parts, 12210011 and 1210, that added together give a palindrome (12211221).

The spelling of 122100111210 in words is "one hundred twenty-two billion, one hundred million, one hundred eleven thousand, two hundred ten".