121000000012002 has 40 divisors (see below), whose sum is σ = 271856518879836. Its totient is φ = 40225201056288.

The previous prime is 121000000011977. The next prime is 121000000012039. The reversal of 121000000012002 is 200210000000121.

It can be written as a sum of positive squares in 2 ways, for example, as 112725339293961 + 8274660718041 = 10617219^2 + 2876571^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1001164213 + ... + 1001285064.

Almost surely, 2^{121000000012002} is an apocalyptic number.

121000000012002 is an abundant number, since it is smaller than the sum of its proper divisors (150856518867834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121000000012002 is a wasteful number, since it uses less digits than its factorization.

121000000012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002449664 (or 2002449655 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 121000000012002 its reverse (200210000000121), we get a palindrome (321210000012123).

The spelling of 121000000012002 in words is "one hundred twenty-one trillion, twelve thousand, two".