121012111202 has 4 divisors (see below), whose sum is σ = 181518166806. Its totient is φ = 60506055600.

The previous prime is 121012111183. The next prime is 121012111219. The reversal of 121012111202 is 202111210121.

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., 101333352241 + 19678758961 = 318329^2 + 140281^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30253027799 + ... + 30253027802.

Almost surely, 2^121012111202 is an apocalyptic number.

121012111202 is a deficient number, since it is larger than the sum of its proper divisors (60506055604).

121012111202 is an equidigital number, since it uses as much as digits as its factorization.

121012111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60506055603.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121012111202 its reverse (202111210121), we get a palindrome (323123321323).

The spelling of 121012111202 in words is "one hundred twenty-one billion, twelve million, one hundred eleven thousand, two hundred two".