221222212211013 has 32 divisors (see below), whose sum is σ = 318947136625152. Its totient is φ = 135581961240000.

The previous prime is 221222212210969. The next prime is 221222212211047. The reversal of 221222212211013 is 310112212222122.

It is not a de Polignac number, because 221222212211013 - 2⁶ = 221222212210949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222212211053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106523298 + ... + 108580188.

It is an arithmetic number, because the mean of its divisors is an integer number (9967098019536).

Almost surely, 2^{221222212211013} is an apocalyptic number.

It is an amenable number.

221222212211013 is a deficient number, since it is larger than the sum of its proper divisors (97724924414139).

221222212211013 is a wasteful number, since it uses less digits than its factorization.

221222212211013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068145.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 221222212211013 its reverse (310112212222122), we get a palindrome (531334424433135).

The spelling of 221222212211013 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred twelve million, two hundred eleven thousand, thirteen".