42221432401511 has 4 divisors (see below), whose sum is σ = 46059744438024. Its totient is φ = 38383120365000.

The previous prime is 42221432401493. The next prime is 42221432401517. The reversal of 42221432401511 is 11510423412224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42221432401511 - 2²⁶ = 42221365292647 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 (42221432401517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919156018240 + ... + 1919156018261.

It is an arithmetic number, because the mean of its divisors is an integer number (11514936109506).

Almost surely, 2^{42221432401511} is an apocalyptic number.

42221432401511 is a deficient number, since it is larger than the sum of its proper divisors (3838312036513).

42221432401511 is a wasteful number, since it uses less digits than its factorization.

42221432401511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838312036512.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 42221432401511 its reverse (11510423412224), we get a palindrome (53731855813735).

The spelling of 42221432401511 in words is "forty-two trillion, two hundred twenty-one billion, four hundred thirty-two million, four hundred one thousand, five hundred eleven".