121214234040 has 32 divisors (see below), whose sum is σ = 363642702480. Its totient is φ = 32323795712.

The previous prime is 121214234033. The next prime is 121214234041. The reversal of 121214234040 is 40432412121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 121214234040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121214234041) 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, 505059189 + ... + 505059428.

Almost surely, 2^121214234040 is an apocalyptic number.

121214234040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121214234040 is an abundant number, since it is smaller than the sum of its proper divisors (242428468440).

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

121214234040 is a wasteful number, since it uses less digits than its factorization.

121214234040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010118631 (or 1010118627 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121214234040 its reverse (40432412121), we get a palindrome (161646646161).

The spelling of 121214234040 in words is "one hundred twenty-one billion, two hundred fourteen million, two hundred thirty-four thousand, forty".