2400122032021 has 32 divisors (see below), whose sum is σ = 2874865771008. Its totient is φ = 1959137832960.

The previous prime is 2400122032001. The next prime is 2400122032051. The reversal of 2400122032021 is 1202302210042.

It is not a de Polignac number, because 2400122032021 - 2¹⁷ = 2400121900949 is a prime.

It is a super-2 number, since 2×2400122032021² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2400122032021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400122032001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290110941 + ... + 290119213.

It is an arithmetic number, because the mean of its divisors is an integer number (89839555344).

Almost surely, 2^{2400122032021} is an apocalyptic number.

It is an amenable number.

2400122032021 is a deficient number, since it is larger than the sum of its proper divisors (474743738987).

2400122032021 is a wasteful number, since it uses less digits than its factorization.

2400122032021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16021.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2400122032021 its reverse (1202302210042), we get a palindrome (3602424242063).

The spelling of 2400122032021 in words is "two trillion, four hundred billion, one hundred twenty-two million, thirty-two thousand, twenty-one".