21101053314422 has 4 divisors (see below), whose sum is σ = 31651579971636. Its totient is φ = 10550526657210.

The previous prime is 21101053314377. The next prime is 21101053314427. The reversal of 21101053314422 is 22441335010112.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101053314427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275263328604 + ... + 5275263328607.

It is an arithmetic number, because the mean of its divisors is an integer number (7912894992909).

Almost surely, 2^{21101053314422} is an apocalyptic number.

21101053314422 is a deficient number, since it is larger than the sum of its proper divisors (10550526657214).

21101053314422 is a wasteful number, since it uses less digits than its factorization.

21101053314422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550526657213.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 21101053314422 its reverse (22441335010112), we get a palindrome (43542388324534).

The spelling of 21101053314422 in words is "twenty-one trillion, one hundred one billion, fifty-three million, three hundred fourteen thousand, four hundred twenty-two".