2242421421021 has 64 divisors (see below), whose sum is σ = 3530795304960. Its totient is φ = 1401705803520.

The previous prime is 2242421420999. The next prime is 2242421421043. The reversal of 2242421421021 is 1201241242422.

2242421421021 is a `hidden beast` number, since 2 + 2 + 4 + 2 + 421 + 4 + 210 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (2242421420999) and next prime (2242421421043).

It is not a de Polignac number, because 2242421421021 - 2⁵ = 2242421420989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242421421091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 449650890 + ... + 449655876.

It is an arithmetic number, because the mean of its divisors is an integer number (55168676640).

Almost surely, 2^{2242421421021} is an apocalyptic number.

It is an amenable number.

2242421421021 is a deficient number, since it is larger than the sum of its proper divisors (1288373883939).

2242421421021 is a wasteful number, since it uses less digits than its factorization.

2242421421021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8511 (or 8505 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 2242421421021 its reverse (1201241242422), we get a palindrome (3443662663443).

The spelling of 2242421421021 in words is "two trillion, two hundred forty-two billion, four hundred twenty-one million, four hundred twenty-one thousand, twenty-one".