122200111020 has 72 divisors (see below), whose sum is σ = 370504982736. Its totient is φ = 30080024832.

The previous prime is 122200111013. The next prime is 122200111037. The reversal of 122200111020 is 20111002221.

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 = 122200110987 and 122200111005.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6015507 + ... + 6035786.

It is an arithmetic number, because the mean of its divisors is an integer number (5145902538).

Almost surely, 2^122200111020 is an apocalyptic number.

122200111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122200111020 is an abundant number, since it is smaller than the sum of its proper divisors (248304871716).

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

122200111020 is a wasteful number, since it uses less digits than its factorization.

122200111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12051331 (or 12051316 counting only the distinct ones).

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

Adding to 122200111020 its reverse (20111002221), we get a palindrome (142311113241).

The spelling of 122200111020 in words is "one hundred twenty-two billion, two hundred million, one hundred eleven thousand, twenty".