122121122202220 has 48 divisors (see below), whose sum is σ = 274339287573120. Its totient is φ = 45501041516544.

The previous prime is 122121122202199. The next prime is 122121122202269. The reversal of 122121122202220 is 22202221121221.

It is a junction number, because it is equal to n+sod(n) for n = 122121122202191 and 122121122202200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1851409140 + ... + 1851475099.

It is an arithmetic number, because the mean of its divisors is an integer number (5715401824440).

Almost surely, 2^{122121122202220} is an apocalyptic number.

122121122202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122121122202220 is an abundant number, since it is smaller than the sum of its proper divisors (152218165370900).

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

122121122202220 is a wasteful number, since it uses less digits than its factorization.

122121122202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702884362 (or 3702884360 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 122121122202220 its reverse (22202221121221), we get a palindrome (144323343323441).

The spelling of 122121122202220 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty".