102101102210121 has 32 divisors (see below), whose sum is σ = 158519201955840. Its totient is φ = 57242287786944.

The previous prime is 102101102210099. The next prime is 102101102210131. The reversal of 102101102210121 is 121012201101201.

It is a happy number.

It is not a de Polignac number, because 102101102210121 - 2¹⁵ = 102101102177353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102101102210121.

It is not an unprimeable number, because it can be changed into a prime (102101102210131) 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, 317176576 + ... + 317498318.

It is an arithmetic number, because the mean of its divisors is an integer number (4953725061120).

Almost surely, 2^{102101102210121} is an apocalyptic number.

It is an amenable number.

102101102210121 is a deficient number, since it is larger than the sum of its proper divisors (56418099745719).

102101102210121 is a wasteful number, since it uses less digits than its factorization.

102101102210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606925.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102101102210121 its reverse (121012201101201), we get a palindrome (223113303311322).

The spelling of 102101102210121 in words is "one hundred two trillion, one hundred one billion, one hundred two million, two hundred ten thousand, one hundred twenty-one".