102120010110121 has 16 divisors (see below), whose sum is σ = 103656824143488. Its totient is φ = 100585975392000.

The previous prime is 102120010110109. The next prime is 102120010110127. The reversal of 102120010110121 is 121011010021201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102120010110121 - 2¹³ = 102120010101929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102120010110127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336536950 + ... + 336840256.

It is an arithmetic number, because the mean of its divisors is an integer number (6478551508968).

Almost surely, 2^{102120010110121} is an apocalyptic number.

It is an amenable number.

102120010110121 is a deficient number, since it is larger than the sum of its proper divisors (1536814033367).

102120010110121 is a wasteful number, since it uses less digits than its factorization.

102120010110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307872.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102120010110121 its reverse (121011010021201), we get a palindrome (223131020131322).

The spelling of 102120010110121 in words is "one hundred two trillion, one hundred twenty billion, ten million, one hundred ten thousand, one hundred twenty-one".