102220125501 has 8 divisors (see below), whose sum is σ = 146777616160. Its totient is φ = 62904692592.

The previous prime is 102220125487. The next prime is 102220125517. The reversal of 102220125501 is 105521022201.

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

It is not a de Polignac number, because 102220125501 - 2⁶ = 102220125437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220123501) 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, 1310514391 + ... + 1310514468.

It is an arithmetic number, because the mean of its divisors is an integer number (18347202020).

Almost surely, 2^102220125501 is an apocalyptic number.

It is an amenable number.

102220125501 is a deficient number, since it is larger than the sum of its proper divisors (44557490659).

102220125501 is a wasteful number, since it uses less digits than its factorization.

102220125501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621028875.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 102220125501 its reverse (105521022201), we get a palindrome (207741147702).

The spelling of 102220125501 in words is "one hundred two billion, two hundred twenty million, one hundred twenty-five thousand, five hundred one".