121002022202 has 4 divisors (see below), whose sum is σ = 181503033306. Its totient is φ = 60501011100.

The previous prime is 121002022171. The next prime is 121002022261. The reversal of 121002022202 is 202220200121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 115755772441 + 5246249761 = 340229^2 + 72431^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30250505549 + ... + 30250505552.

Almost surely, 2^121002022202 is an apocalyptic number.

121002022202 is a deficient number, since it is larger than the sum of its proper divisors (60501011104).

121002022202 is an equidigital number, since it uses as much as digits as its factorization.

121002022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60501011103.

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

Adding to 121002022202 its reverse (202220200121), we get a palindrome (323222222323).

It can be divided in two parts, 12100 and 2022202, that added together give a palindrome (2034302).

The spelling of 121002022202 in words is "one hundred twenty-one billion, two million, twenty-two thousand, two hundred two".