102111012101121 has 32 divisors (see below), whose sum is σ = 136916772913152. Its totient is φ = 67690960592640.

The previous prime is 102111012101099. The next prime is 102111012101129. The reversal of 102111012101121 is 121101210111201.

It is not a de Polignac number, because 102111012101121 - 2²⁷ = 102110877883393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102111012101121.

It is not an unprimeable number, because it can be changed into a prime (102111012101129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 618618361 + ... + 618783401.

It is an arithmetic number, because the mean of its divisors is an integer number (4278649153536).

Almost surely, 2^{102111012101121} is an apocalyptic number.

It is an amenable number.

102111012101121 is a deficient number, since it is larger than the sum of its proper divisors (34805760812031).

102111012101121 is a wasteful number, since it uses less digits than its factorization.

102111012101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167053.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 102111012101121 its reverse (121101210111201), we get a palindrome (223212222212322).

The spelling of 102111012101121 in words is "one hundred two trillion, one hundred eleven billion, twelve million, one hundred one thousand, one hundred twenty-one".