4021422410021 has 16 divisors (see below), whose sum is σ = 4267854533376. Its totient is φ = 3776091975936.

The previous prime is 4021422410017. The next prime is 4021422410069. The reversal of 4021422410021 is 1200142241204.

It is not a de Polignac number, because 4021422410021 - 2² = 4021422410017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021422410011) 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, 32035040 + ... + 32160326.

It is an arithmetic number, because the mean of its divisors is an integer number (266740908336).

Almost surely, 2^{4021422410021} is an apocalyptic number.

It is an amenable number.

4021422410021 is a deficient number, since it is larger than the sum of its proper divisors (246432123355).

4021422410021 is a wasteful number, since it uses less digits than its factorization.

4021422410021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129668.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 4021422410021 its reverse (1200142241204), we get a palindrome (5221564651225).

The spelling of 4021422410021 in words is "four trillion, twenty-one billion, four hundred twenty-two million, four hundred ten thousand, twenty-one".