122001220110 has 128 divisors (see below), whose sum is σ = 371240755200. Its totient is φ = 24921198720.

The previous prime is 122001220057. The next prime is 122001220139. The reversal of 122001220110 is 11022100221.

It is a congruent 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, 311290 + ... + 583869.

It is an arithmetic number, because the mean of its divisors is an integer number (2900318400).

Almost surely, 2^122001220110 is an apocalyptic number.

122001220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122001220110 is an abundant number, since it is smaller than the sum of its proper divisors (249239535090).

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

122001220110 is a wasteful number, since it uses less digits than its factorization.

122001220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895246.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122001220110 its reverse (11022100221), we get a palindrome (133023320331).

The spelling of 122001220110 in words is "one hundred twenty-two billion, one million, two hundred twenty thousand, one hundred ten".