102102111220101 has 16 divisors (see below), whose sum is σ = 141157805752320. Its totient is φ = 65576938192560.

The previous prime is 102102111220073. The next prime is 102102111220127. The reversal of 102102111220101 is 101022111201201.

It is a happy number.

It is not a de Polignac number, because 102102111220101 - 2¹⁰ = 102102111219077 is a prime.

It is a super-2 number, since 2×102102111220101² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102111227101) 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, 2461576041 + ... + 2461617518.

It is an arithmetic number, because the mean of its divisors is an integer number (8822362859520).

Almost surely, 2^{102102111220101} is an apocalyptic number.

It is an amenable number.

102102111220101 is a deficient number, since it is larger than the sum of its proper divisors (39055694532219).

102102111220101 is a wasteful number, since it uses less digits than its factorization.

102102111220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923193816.

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

Adding to 102102111220101 its reverse (101022111201201), we get a palindrome (203124222421302).

The spelling of 102102111220101 in words is "one hundred two trillion, one hundred two billion, one hundred eleven million, two hundred twenty thousand, one hundred one".