122122112221002 has 16 divisors (see below), whose sum is σ = 244247493738240. Its totient is φ = 40706825857632.

The previous prime is 122122112220949. The next prime is 122122112221007. The reversal of 122122112221002 is 200122211221221.

It is a self number, because there is not a number n which added to its sum of digits gives 122122112221002.

It is not an unprimeable number, because it can be changed into a prime (122122112221007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135734938 + ... + 136631685.

It is an arithmetic number, because the mean of its divisors is an integer number (15265468358640).

Almost surely, 2^{122122112221002} is an apocalyptic number.

122122112221002 is an abundant number, since it is smaller than the sum of its proper divisors (122125381517238).

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

122122112221002 is a wasteful number, since it uses less digits than its factorization.

122122112221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272441357.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122122112221002 its reverse (200122211221221), we get a palindrome (322244323442223).

The spelling of 122122112221002 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, two".