122022100020 has 48 divisors (see below), whose sum is σ = 341737200000. Its totient is φ = 32532053376.

The previous prime is 122022100007. The next prime is 122022100027. The reversal of 122022100020 is 20001220221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 122022099969 and 122022100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122022100027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53106 + ... + 496854.

It is an arithmetic number, because the mean of its divisors is an integer number (7119525000).

Almost surely, 2^122022100020 is an apocalyptic number.

122022100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122022100020 is an abundant number, since it is smaller than the sum of its proper divisors (219715099980).

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

122022100020 is a wasteful number, since it uses less digits than its factorization.

122022100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448344 (or 448342 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 122022100020 its reverse (20001220221), we get a palindrome (142023320241).

The spelling of 122022100020 in words is "one hundred twenty-two billion, twenty-two million, one hundred thousand, twenty".