121002440202 has 96 divisors (see below), whose sum is σ = 314203668480. Its totient is φ = 32922650880.

The previous prime is 121002440093. The next prime is 121002440227. The reversal of 121002440202 is 202044200121.

121002440202 is a `hidden beast` number, since 1 + 21 + 0 + 0 + 2 + 440 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 in 47 ways as a sum of consecutive naturals, for example, 39927 + ... + 493557.

It is an arithmetic number, because the mean of its divisors is an integer number (3272954880).

Almost surely, 2^121002440202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121002440202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157101834240).

121002440202 is an abundant number, since it is smaller than the sum of its proper divisors (193201228278).

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

121002440202 is a wasteful number, since it uses less digits than its factorization.

121002440202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453748 (or 453745 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 121002440202 its reverse (202044200121), we get a palindrome (323046640323).

The spelling of 121002440202 in words is "one hundred twenty-one billion, two million, four hundred forty thousand, two hundred two".