222344431101221 has 48 divisors (see below), whose sum is σ = 266364001231488. Its totient is φ = 183945418675200.

The previous prime is 222344431101167. The next prime is 222344431101223. The reversal of 222344431101221 is 122101134443222.

It is not a de Polignac number, because 222344431101221 - 2¹⁸ = 222344430839077 is a prime.

It is a super-2 number, since 2×222344431101221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222344431101223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3977724545 + ... + 3977780441.

It is an arithmetic number, because the mean of its divisors is an integer number (5549250025656).

Almost surely, 2^{222344431101221} is an apocalyptic number.

It is an amenable number.

222344431101221 is a deficient number, since it is larger than the sum of its proper divisors (44019570130267).

222344431101221 is a wasteful number, since it uses less digits than its factorization.

222344431101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86142 (or 86129 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 222344431101221 its reverse (122101134443222), we get a palindrome (344445565544443).

The spelling of 222344431101221 in words is "two hundred twenty-two trillion, three hundred forty-four billion, four hundred thirty-one million, one hundred one thousand, two hundred twenty-one".