121012002102 has 16 divisors (see below), whose sum is σ = 242029831680. Its totient is φ = 40336362792.

The previous prime is 121012002091. The next prime is 121012002109. The reversal of 121012002102 is 201200210121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012002109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55299 + ... + 495057.

It is an arithmetic number, because the mean of its divisors is an integer number (15126864480).

Almost surely, 2^121012002102 is an apocalyptic number.

121012002102 is an abundant number, since it is smaller than the sum of its proper divisors (121017829578).

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

121012002102 is a wasteful number, since it uses less digits than its factorization.

121012002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485627.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121012002102 its reverse (201200210121), we get a palindrome (322212212223).

The spelling of 121012002102 in words is "one hundred twenty-one billion, twelve million, two thousand, one hundred two".