202122101121111 has 12 divisors (see below), whose sum is σ = 291994734805488. Its totient is φ = 134729334148704.

The previous prime is 202122101121077. The next prime is 202122101121119. The reversal of 202122101121111 is 111121101221202.

It is a happy number.

202122101121111 is a `hidden beast` number, since 20 + 212 + 210 + 1 + 1 + 211 + 11 = 666.

It is not a de Polignac number, because 202122101121111 - 2⁶ = 202122101121047 is a prime.

It is a super-2 number, since 2×202122101121111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122101121119) 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 11 ways as a sum of consecutive naturals, for example, 1561037115 + ... + 1561166588.

It is an arithmetic number, because the mean of its divisors is an integer number (24332894567124).

Almost surely, 2^{202122101121111} is an apocalyptic number.

202122101121111 is a deficient number, since it is larger than the sum of its proper divisors (89872633684377).

202122101121111 is a wasteful number, since it uses less digits than its factorization.

202122101121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122210902 (or 3122210899 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 202122101121111 its reverse (111121101221202), we get a palindrome (313243202342313).

The spelling of 202122101121111 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred one million, one hundred twenty-one thousand, one hundred eleven".