122020110100 has 72 divisors (see below), whose sum is σ = 306872108928. Its totient is φ = 41246217600.

The previous prime is 122020110041. The next prime is 122020110101. The reversal of 122020110100 is 1011020221.

It is a super-2 number, since 2×122020110100² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020110101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1177867 + ... + 1277266.

It is an arithmetic number, because the mean of its divisors is an integer number (4262112624).

Almost surely, 2^122020110100 is an apocalyptic number.

122020110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122020110100 is an abundant number, since it is smaller than the sum of its proper divisors (184851998828).

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

122020110100 is a wasteful number, since it uses less digits than its factorization.

122020110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455225 (or 2455218 counting only the distinct ones).

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

Adding to 122020110100 its reverse (1011020221), we get a palindrome (123031130321).

The spelling of 122020110100 in words is "one hundred twenty-two billion, twenty million, one hundred ten thousand, one hundred".