2420224240021 has 32 divisors (see below), whose sum is σ = 2987382944000. Its totient is φ = 1954435936320.

The previous prime is 2420224240013. The next prime is 2420224240037. The reversal of 2420224240021 is 1200424220242.

It is not a de Polignac number, because 2420224240021 - 2³ = 2420224240013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420224240061) 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, 153691 + ... + 2205463.

It is an arithmetic number, because the mean of its divisors is an integer number (93355717000).

Almost surely, 2^{2420224240021} is an apocalyptic number.

It is an amenable number.

2420224240021 is a deficient number, since it is larger than the sum of its proper divisors (567158703979).

2420224240021 is a wasteful number, since it uses less digits than its factorization.

2420224240021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051994 (or 2051980 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 2420224240021 its reverse (1200424220242), we get a palindrome (3620648460263).

The spelling of 2420224240021 in words is "two trillion, four hundred twenty billion, two hundred twenty-four million, two hundred forty thousand, twenty-one".