122102011201221 has 12 divisors (see below), whose sum is σ = 176383094067648. Its totient is φ = 81395099724264.

The previous prime is 122102011201213. The next prime is 122102011201241. The reversal of 122102011201221 is 122102110201221.

122102011201221 is a `hidden beast` number, since 1 + 2 + 210 + 20 + 11 + 201 + 221 = 666.

It is not a de Polignac number, because 122102011201221 - 2³ = 122102011201213 is a prime.

It is a super-2 number, since 2×122102011201221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122102011201194 and 122102011201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102011201241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519965805 + ... + 520200578.

It is an arithmetic number, because the mean of its divisors is an integer number (14698591172304).

Almost surely, 2^{122102011201221} is an apocalyptic number.

It is an amenable number.

122102011201221 is a deficient number, since it is larger than the sum of its proper divisors (54281082866427).

122102011201221 is a wasteful number, since it uses less digits than its factorization.

122102011201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040179432 (or 1040179429 counting only the distinct ones).

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

Adding to 122102011201221 its reverse (122102110201221), we get a palindrome (244204121402442).

The spelling of 122102011201221 in words is "one hundred twenty-two trillion, one hundred two billion, eleven million, two hundred one thousand, two hundred twenty-one".