101221400515422 has 64 divisors (see below), whose sum is σ = 225038142950400. Its totient is φ = 30091131907200.

The previous prime is 101221400515387. The next prime is 101221400515441. The reversal of 101221400515422 is 224515004122101.

It is a self number, because there is not a number n which added to its sum of digits gives 101221400515422.

It is a congruent number.

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, 30605272 + ... + 33750932.

It is an arithmetic number, because the mean of its divisors is an integer number (3516220983600).

Almost surely, 2^{101221400515422} is an apocalyptic number.

101221400515422 is an abundant number, since it is smaller than the sum of its proper divisors (123816742434978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101221400515422 is a wasteful number, since it uses less digits than its factorization.

101221400515422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154929.

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 101221400515422 its reverse (224515004122101), we get a palindrome (325736404637523).

The spelling of 101221400515422 in words is "one hundred one trillion, two hundred twenty-one billion, four hundred million, five hundred fifteen thousand, four hundred twenty-two".