121002020122 has 4 divisors (see below), whose sum is σ = 181503030186. Its totient is φ = 60501010060.

The previous prime is 121002020119. The next prime is 121002020143. The reversal of 121002020122 is 221020200121.

It is a happy number.

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., 117538579921 + 3463440201 = 342839^2 + 58851^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30250505029 + ... + 30250505032.

Almost surely, 2^121002020122 is an apocalyptic number.

121002020122 is a deficient number, since it is larger than the sum of its proper divisors (60501010064).

121002020122 is an equidigital number, since it uses as much as digits as its factorization.

121002020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60501010063.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121002020122 its reverse (221020200121), we get a palindrome (342022220243).

The spelling of 121002020122 in words is "one hundred twenty-one billion, two million, twenty thousand, one hundred twenty-two".