124121420412 has 48 divisors (see below), whose sum is σ = 315987436800. Its totient is φ = 37607551360.

The previous prime is 124121420399. The next prime is 124121420417. The reversal of 124121420412 is 214024121421.

It is a happy number.

It is a super-2 number, since 2×124121420412² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124121420417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002664 + ... + 1119632.

It is an arithmetic number, because the mean of its divisors is an integer number (6583071600).

Almost surely, 2^124121420412 is an apocalyptic number.

124121420412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

124121420412 is an abundant number, since it is smaller than the sum of its proper divisors (191866016388).

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

124121420412 is a wasteful number, since it uses less digits than its factorization.

124121420412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125026 (or 125024 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 124121420412 its reverse (214024121421), we get a palindrome (338145541833).

The spelling of 124121420412 in words is "one hundred twenty-four billion, one hundred twenty-one million, four hundred twenty thousand, four hundred twelve".