102012201022121 has 8 divisors (see below), whose sum is σ = 109869163233984. Its totient is φ = 94156648785360.

The previous prime is 102012201022079. The next prime is 102012201022139. The reversal of 102012201022121 is 121220102210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102012201022121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102012201022121.

It is not an unprimeable number, because it can be changed into a prime (102012201022021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352343501 + ... + 352632906.

It is an arithmetic number, because the mean of its divisors is an integer number (13733645404248).

Almost surely, 2^{102012201022121} is an apocalyptic number.

It is an amenable number.

102012201022121 is a deficient number, since it is larger than the sum of its proper divisors (7856962211863).

102012201022121 is a wasteful number, since it uses less digits than its factorization.

102012201022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704987551.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102012201022121 its reverse (121220102210201), we get a palindrome (223232303232322).

The spelling of 102012201022121 in words is "one hundred two trillion, twelve billion, two hundred one million, twenty-two thousand, one hundred twenty-one".