121404120244 has 48 divisors (see below), whose sum is σ = 233161488000. Its totient is φ = 54853286400.

The previous prime is 121404120163. The next prime is 121404120289. The reversal of 121404120244 is 442021404121.

It is a happy number.

It is a super-2 number, since 2×121404120244² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9879384 + ... + 9891664.

It is an arithmetic number, because the mean of its divisors is an integer number (4857531000).

Almost surely, 2^121404120244 is an apocalyptic number.

It is an amenable number.

121404120244 is a deficient number, since it is larger than the sum of its proper divisors (111757367756).

121404120244 is a wasteful number, since it uses less digits than its factorization.

121404120244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13624 (or 13622 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 121404120244 its reverse (442021404121), we get a palindrome (563425524365).

The spelling of 121404120244 in words is "one hundred twenty-one billion, four hundred four million, one hundred twenty thousand, two hundred forty-four".