22121421331435 has 32 divisors (see below), whose sum is σ = 27044817003072. Its totient is φ = 17365785108480.

The previous prime is 22121421331349. The next prime is 22121421331447. The reversal of 22121421331435 is 53413312412122.

It is not a de Polignac number, because 22121421331435 - 2¹¹ = 22121421329387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22121421331435.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1039383304 + ... + 1039404586.

It is an arithmetic number, because the mean of its divisors is an integer number (845150531346).

Almost surely, 2^{22121421331435} is an apocalyptic number.

22121421331435 is a deficient number, since it is larger than the sum of its proper divisors (4923395671637).

22121421331435 is a wasteful number, since it uses less digits than its factorization.

22121421331435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29263.

The product of its digits is 34560, while the sum is 34.

Adding to 22121421331435 its reverse (53413312412122), we get a palindrome (75534733743557).

The spelling of 22121421331435 in words is "twenty-two trillion, one hundred twenty-one billion, four hundred twenty-one million, three hundred thirty-one thousand, four hundred thirty-five".