122201212021122 has 128 divisors (see below), whose sum is σ = 270992803479552. Its totient is φ = 36498949401600.

The previous prime is 122201212021121. The next prime is 122201212021123. The reversal of 122201212021122 is 221120212102221.

It is an interprime number because it is at equal distance from previous prime (122201212021121) and next prime (122201212021123).

It is not an unprimeable number, because it can be changed into a prime (122201212021121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 396728223 + ... + 397036125.

It is an arithmetic number, because the mean of its divisors is an integer number (2117131277184).

Almost surely, 2^{122201212021122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122201212021122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135496401739776).

122201212021122 is an abundant number, since it is smaller than the sum of its proper divisors (148791591458430).

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

122201212021122 is a wasteful number, since it uses less digits than its factorization.

122201212021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308696.

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

Adding to 122201212021122 its reverse (221120212102221), we get a palindrome (343321424123343).

The spelling of 122201212021122 in words is "one hundred twenty-two trillion, two hundred one billion, two hundred twelve million, twenty-one thousand, one hundred twenty-two".