122211221001020 has 48 divisors (see below), whose sum is σ = 257170459775040. Its totient is φ = 48784228975104.

The previous prime is 122211221001013. The next prime is 122211221001097. The reversal of 122211221001020 is 20100122112221.

It is a self number, because there is not a number n which added to its sum of digits gives 122211221001020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16065641 + ... + 22417119.

It is an arithmetic number, because the mean of its divisors is an integer number (5357717911980).

Almost surely, 2^{122211221001020} is an apocalyptic number.

122211221001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122211221001020 is an abundant number, since it is smaller than the sum of its proper divisors (134959238774020).

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

122211221001020 is a wasteful number, since it uses less digits than its factorization.

122211221001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6353462 (or 6353460 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122211221001020 its reverse (20100122112221), we get a palindrome (142311343113241).

The spelling of 122211221001020 in words is "one hundred twenty-two trillion, two hundred eleven billion, two hundred twenty-one million, one thousand, twenty".