122000021220000 has 960 divisors, whose sum is σ = 499134075568128. Its totient is φ = 25340352000000.

The previous prime is 122000021219987. The next prime is 122000021220001. The reversal of 122000021220000 is 22120000221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (122000021220001) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 17653016545 + ... + 17653023455.

Almost surely, 2^{122000021220000} is an apocalyptic number.

122000021220000 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 122000021220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249567037784064).

122000021220000 is an abundant number, since it is smaller than the sum of its proper divisors (377134054348128).

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

122000021220000 is a wasteful number, since it uses less digits than its factorization.

122000021220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10783 (or 10760 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 122000021220000 its reverse (22120000221), we get a palindrome (122022141220221).

The spelling of 122000021220000 in words is "one hundred twenty-two trillion, twenty-one million, two hundred twenty thousand".