121020020102 has 8 divisors (see below), whose sum is σ = 181642159800. Its totient is φ = 60472633504.

The previous prime is 121020020059. The next prime is 121020020113. The reversal of 121020020102 is 201020020121.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18684227 + ... + 18690702.

It is an arithmetic number, because the mean of its divisors is an integer number (22705269975).

Almost surely, 2^121020020102 is an apocalyptic number.

121020020102 is a deficient number, since it is larger than the sum of its proper divisors (60622139698).

121020020102 is a wasteful number, since it uses less digits than its factorization.

121020020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37376550.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121020020102 its reverse (201020020121), we get a palindrome (322040040223).

The spelling of 121020020102 in words is "one hundred twenty-one billion, twenty million, twenty thousand, one hundred two".