221422011231426 has 16 divisors (see below), whose sum is σ = 443215224507744. Its totient is φ = 73745470069664.

The previous prime is 221422011231413. The next prime is 221422011231427. The reversal of 221422011231426 is 624132110224122.

It is not an unprimeable number, because it can be changed into a prime (221422011231427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15466744116 + ... + 15466758431.

It is an arithmetic number, because the mean of its divisors is an integer number (27700951531734).

Almost surely, 2^{221422011231426} is an apocalyptic number.

221422011231426 is an abundant number, since it is smaller than the sum of its proper divisors (221793213276318).

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

221422011231426 is a wasteful number, since it uses less digits than its factorization.

221422011231426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30933503745.

The product of its (nonzero) digits is 18432, while the sum is 33.

Adding to 221422011231426 its reverse (624132110224122), we get a palindrome (845554121455548).

The spelling of 221422011231426 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, eleven million, two hundred thirty-one thousand, four hundred twenty-six".