121021010202 has 16 divisors (see below), whose sum is σ = 242716236480. Its totient is φ = 40227967392.

The previous prime is 121021010189. The next prime is 121021010203. The reversal of 121021010202 is 202010120121.

It is not an unprimeable number, because it can be changed into a prime (121021010203) 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, 28090003 + ... + 28094310.

It is an arithmetic number, because the mean of its divisors is an integer number (15169764780).

Almost surely, 2^121021010202 is an apocalyptic number.

121021010202 is an abundant number, since it is smaller than the sum of its proper divisors (121695226278).

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

121021010202 is a wasteful number, since it uses less digits than its factorization.

121021010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56184677.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121021010202 its reverse (202010120121), we get a palindrome (323031130323).

The spelling of 121021010202 in words is "one hundred twenty-one billion, twenty-one million, ten thousand, two hundred two".