122220122120000 has 140 divisors (see below), whose sum is σ = 308784416510196. Its totient is φ = 47965632000000.

The previous prime is 122220122119999. The next prime is 122220122120003. The reversal of 122220122120000 is 21221022221.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 76768578485824 + 45451543634176 = 8761768^2 + 6741776^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220122120003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26705501 + ... + 30945500.

Almost surely, 2^{122220122120000} is an apocalyptic number.

122220122120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220122120000 is an abundant number, since it is smaller than the sum of its proper divisors (186564294390196).

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

122220122120000 is an frugal number, since it uses more digits than its factorization.

122220122120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57651086 (or 57651061 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122220122120000 its reverse (21221022221), we get a palindrome (122241343142221).

The spelling of 122220122120000 in words is "one hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twenty thousand".