121220020202 has 32 divisors (see below), whose sum is σ = 186974548992. Its totient is φ = 58914309744.

The previous prime is 121220020199. The next prime is 121220020261. The reversal of 121220020202 is 202020022121.

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, 8159393 + ... + 8174235.

It is an arithmetic number, because the mean of its divisors is an integer number (5842954656).

Almost surely, 2^121220020202 is an apocalyptic number.

121220020202 is a deficient number, since it is larger than the sum of its proper divisors (65754528790).

121220020202 is a wasteful number, since it uses less digits than its factorization.

121220020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15482.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 121220020202 its reverse (202020022121), we get a palindrome (323240042323).

The spelling of 121220020202 in words is "one hundred twenty-one billion, two hundred twenty million, twenty thousand, two hundred two".