102012020201121 has 16 divisors (see below), whose sum is σ = 136884889732800. Its totient is φ = 67573598010048.

The previous prime is 102012020201083. The next prime is 102012020201141. The reversal of 102012020201121 is 121102020210201.

It is not a de Polignac number, because 102012020201121 - 2⁹ = 102012020200609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102012020201121.

It is not an unprimeable number, because it can be changed into a prime (102012020201141) 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, 23991270 + ... + 27921408.

It is an arithmetic number, because the mean of its divisors is an integer number (8555305608300).

Almost surely, 2^{102012020201121} is an apocalyptic number.

It is an amenable number.

102012020201121 is a deficient number, since it is larger than the sum of its proper divisors (34872869531679).

102012020201121 is a wasteful number, since it uses less digits than its factorization.

102012020201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985408.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102012020201121 its reverse (121102020210201), we get a palindrome (223114040411322).

The spelling of 102012020201121 in words is "one hundred two trillion, twelve billion, twenty million, two hundred one thousand, one hundred twenty-one".