121001020202 has 32 divisors (see below), whose sum is σ = 189552373824. Its totient is φ = 57882988800.

The previous prime is 121001020181. The next prime is 121001020219. The reversal of 121001020202 is 202020100121.

It is a happy 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, 1216433 + ... + 1312139.

It is an arithmetic number, because the mean of its divisors is an integer number (5923511682).

Almost surely, 2^121001020202 is an apocalyptic number.

121001020202 is a deficient number, since it is larger than the sum of its proper divisors (68551353622).

121001020202 is a wasteful number, since it uses less digits than its factorization.

121001020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96054.

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

Adding to 121001020202 its reverse (202020100121), we get a palindrome (323021120323).

The spelling of 121001020202 in words is "one hundred twenty-one billion, one million, twenty thousand, two hundred two".