122111100221202 has 16 divisors (see below), whose sum is σ = 271358000491680. Its totient is φ = 40703700073716.

The previous prime is 122111100221183. The next prime is 122111100221203. The reversal of 122111100221202 is 202122001111221.

122111100221202 is a `hidden beast` number, since 1 + 221 + 11 + 10 + 0 + 221 + 202 = 666.

It is a super-2 number, since 2×122111100221202² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (122111100221203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1130658335328 + ... + 1130658335435.

It is an arithmetic number, because the mean of its divisors is an integer number (16959875030730).

Almost surely, 2^{122111100221202} is an apocalyptic number.

122111100221202 is an abundant number, since it is smaller than the sum of its proper divisors (149246900270478).

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

122111100221202 is a wasteful number, since it uses less digits than its factorization.

122111100221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261316670774 (or 2261316670768 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122111100221202 its reverse (202122001111221), we get a palindrome (324233101332423).

The spelling of 122111100221202 in words is "one hundred twenty-two trillion, one hundred eleven billion, one hundred million, two hundred twenty-one thousand, two hundred two".