122121100210 has 16 divisors (see below), whose sum is σ = 232748450136. Its totient is φ = 45975002368.

The previous prime is 122121100163. The next prime is 122121100229. The reversal of 122121100210 is 12001121221.

It can be written as a sum of positive squares in 4 ways, for example, as 89243795169 + 32877305041 = 298737^2 + 181321^2 .

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, 359179537 + ... + 359179876.

Almost surely, 2^122121100210 is an apocalyptic number.

122121100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121100210 is a deficient number, since it is larger than the sum of its proper divisors (110627349926).

122121100210 is a wasteful number, since it uses less digits than its factorization.

122121100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718359437.

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

Adding to 122121100210 its reverse (12001121221), we get a palindrome (134122221431).

The spelling of 122121100210 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, two hundred ten".