122020111220220 has 72 divisors (see below), whose sum is σ = 370584055448880. Its totient is φ = 32498574589440.

The previous prime is 122020111220141. The next prime is 122020111220243. The reversal of 122020111220220 is 22022111020221.

It is a happy number.

122020111220220 is a `hidden beast` number, since 1 + 2 + 20 + 201 + 1 + 1 + 220 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122020111220193 and 122020111220202.

It is a congruent number.

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, 417788365 + ... + 418080324.

Almost surely, 2^{122020111220220} is an apocalyptic number.

122020111220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122020111220220 is an abundant number, since it is smaller than the sum of its proper divisors (248563944228660).

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

122020111220220 is a wasteful number, since it uses less digits than its factorization.

122020111220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835869515 (or 835869510 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122020111220220 its reverse (22022111020221), we get a palindrome (144042222240441).

The spelling of 122020111220220 in words is "one hundred twenty-two trillion, twenty billion, one hundred eleven million, two hundred twenty thousand, two hundred twenty".