102112010221 has 8 divisors (see below), whose sum is σ = 110625266304. Its totient is φ = 93692823600.

The previous prime is 102112010207. The next prime is 102112010233. The reversal of 102112010221 is 122010211201.

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

It is a cyclic number.

It is not a de Polignac number, because 102112010221 - 2⁹ = 102112009709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112010201) 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, 23515105 + ... + 23519446.

It is an arithmetic number, because the mean of its divisors is an integer number (13828158288).

Almost surely, 2^102112010221 is an apocalyptic number.

It is an amenable number.

102112010221 is a deficient number, since it is larger than the sum of its proper divisors (8513256083).

102112010221 is a wasteful number, since it uses less digits than its factorization.

102112010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47034731.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102112010221 its reverse (122010211201), we get a palindrome (224122221422).

The spelling of 102112010221 in words is "one hundred two billion, one hundred twelve million, ten thousand, two hundred twenty-one".