122222021020 has 96 divisors (see below), whose sum is σ = 283291598016. Its totient is φ = 43923456000.

The previous prime is 122222021017. The next prime is 122222021063. The reversal of 122222021020 is 20120222221.

It is a junction number, because it is equal to n+sod(n) for n = 122222020985 and 122222021003.

It is a congruent number.

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, 12816174 + ... + 12825706.

It is an arithmetic number, because the mean of its divisors is an integer number (2950954146).

Almost surely, 2^122222021020 is an apocalyptic number.

122222021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122222021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141645799008).

122222021020 is an abundant number, since it is smaller than the sum of its proper divisors (161069576996).

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

122222021020 is a wasteful number, since it uses less digits than its factorization.

122222021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10231 (or 10229 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 122222021020 its reverse (20120222221), we get a palindrome (142342243241).

The spelling of 122222021020 in words is "one hundred twenty-two billion, two hundred twenty-two million, twenty-one thousand, twenty".