22221122281051 has 8 divisors (see below), whose sum is σ = 22251927507264. Its totient is φ = 22190329816200.

The previous prime is 22221122281031. The next prime is 22221122281063. The reversal of 22221122281051 is 15018222112222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22221122281051 - 2¹³ = 22221122272859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22221122281021) 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, 297276 + ... + 6673126.

It is an arithmetic number, because the mean of its divisors is an integer number (2781490938408).

Almost surely, 2^{22221122281051} is an apocalyptic number.

22221122281051 is a deficient number, since it is larger than the sum of its proper divisors (30805226213).

22221122281051 is an equidigital number, since it uses as much as digits as its factorization.

22221122281051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380681.

The product of its (nonzero) digits is 5120, while the sum is 31.

Adding to 22221122281051 its reverse (15018222112222), we get a palindrome (37239344393273).

The spelling of 22221122281051 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred eighty-one thousand, fifty-one".