102120222 has 32 divisors (see below), whose sum is σ = 213227424. Its totient is φ = 32572800.

The previous prime is 102120203. The next prime is 102120301. The reversal of 102120222 is 222021201.

It is a junction number, because it is equal to n+sod(n) for n = 102120198 and 102120207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9772 + ... + 17312.

It is an arithmetic number, because the mean of its divisors is an integer number (6663357).

Almost surely, 2^102120222 is an apocalyptic number.

102120222 is an abundant number, since it is smaller than the sum of its proper divisors (111107202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102120222 is a wasteful number, since it uses less digits than its factorization.

102120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7644.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 102120222 is about 10105.4550615002. The cubic root of 102120222 is about 467.4163683127.

Adding to 102120222 its reverse (222021201), we get a palindrome (324141423).

The spelling of 102120222 in words is "one hundred two million, one hundred twenty thousand, two hundred twenty-two".