122100001210 has 64 divisors (see below), whose sum is σ = 246516576768. Its totient is φ = 43156800000.

The previous prime is 122100001157. The next prime is 122100001223. The reversal of 122100001210 is 12100001221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1172260 + ... + 1272160.

It is an arithmetic number, because the mean of its divisors is an integer number (3851821512).

Almost surely, 2^122100001210 is an apocalyptic number.

122100001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122100001210 is an abundant number, since it is smaller than the sum of its proper divisors (124416575558).

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

122100001210 is a wasteful number, since it uses less digits than its factorization.

122100001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100231.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122100001210 its reverse (12100001221), we get a palindrome (134200002431).

The spelling of 122100001210 in words is "one hundred twenty-two billion, one hundred million, one thousand, two hundred ten".