121220412024 has 64 divisors (see below), whose sum is σ = 329549968800. Its totient is φ = 37002092544.

The previous prime is 121220411969. The next prime is 121220412101. The reversal of 121220412024 is 420214022121.

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, 3999889 + ... + 4030080.

Almost surely, 2^121220412024 is an apocalyptic number.

It is an amenable number.

121220412024 is an abundant number, since it is smaller than the sum of its proper divisors (208329556776).

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

121220412024 is a wasteful number, since it uses less digits than its factorization.

121220412024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8030032 (or 8030028 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121220412024 its reverse (420214022121), we get a palindrome (541434434145).

The spelling of 121220412024 in words is "one hundred twenty-one billion, two hundred twenty million, four hundred twelve thousand, twenty-four".