122012222021220 has 192 divisors, whose sum is σ = 366122770142976. Its totient is φ = 30250899456000.

The previous prime is 122012222021219. The next prime is 122012222021273. The reversal of 122012222021220 is 22120222210221.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 991899720 + ... + 992022720.

It is an arithmetic number, because the mean of its divisors is an integer number (1906889427828).

Almost surely, 2^{122012222021220} is an apocalyptic number.

122012222021220 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 122012222021220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183061385071488).

122012222021220 is an abundant number, since it is smaller than the sum of its proper divisors (244110548121756).

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

122012222021220 is a wasteful number, since it uses less digits than its factorization.

122012222021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134830 (or 134828 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 122012222021220 its reverse (22120222210221), we get a palindrome (144132444231441).

The spelling of 122012222021220 in words is "one hundred twenty-two trillion, twelve billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty".