102122021121111 has 24 divisors (see below), whose sum is σ = 148971318656160. Its totient is φ = 67406712840000.

The previous prime is 102122021121101. The next prime is 102122021121143. The reversal of 102122021121111 is 111121120221201.

It is a happy number.

102122021121111 is a `hidden beast` number, since 1 + 0 + 21 + 220 + 211 + 211 + 1 + 1 = 666.

102122021121111 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 102122021121111 - 2⁶ = 102122021121047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122021121101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128045070 + ... + 128840148.

It is an arithmetic number, because the mean of its divisors is an integer number (6207138277340).

Almost surely, 2^{102122021121111} is an apocalyptic number.

102122021121111 is a deficient number, since it is larger than the sum of its proper divisors (46849297535049).

102122021121111 is a wasteful number, since it uses less digits than its factorization.

102122021121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936487 (or 936484 counting only the distinct ones).

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

Adding to 102122021121111 its reverse (111121120221201), we get a palindrome (213243141342312).

The spelling of 102122021121111 in words is "one hundred two trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty-one thousand, one hundred eleven".