123221012102 has 16 divisors (see below), whose sum is σ = 186213825072. Its totient is φ = 61149897600.

The previous prime is 123221012077. The next prime is 123221012137. The reversal of 123221012102 is 201210122321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1626977 + ... + 1701027.

It is an arithmetic number, because the mean of its divisors is an integer number (11638364067).

Almost surely, 2^123221012102 is an apocalyptic number.

123221012102 is a deficient number, since it is larger than the sum of its proper divisors (62992812970).

123221012102 is a wasteful number, since it uses less digits than its factorization.

123221012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80263.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 123221012102 its reverse (201210122321), we get a palindrome (324431134423).

The spelling of 123221012102 in words is "one hundred twenty-three billion, two hundred twenty-one million, twelve thousand, one hundred two".