22221321310 has 16 divisors (see below), whose sum is σ = 40139720496. Its totient is φ = 8857119168.

The previous prime is 22221321307. The next prime is 22221321341. The reversal of 22221321310 is 1312312222.

It is a super-2 number, since 2×22221321310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3923199 + ... + 3928858.

It is an arithmetic number, because the mean of its divisors is an integer number (2508732531).

Almost surely, 2^22221321310 is an apocalyptic number.

22221321310 is a deficient number, since it is larger than the sum of its proper divisors (17918399186).

22221321310 is a wasteful number, since it uses less digits than its factorization.

22221321310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852347.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22221321310 its reverse (1312312222), we get a palindrome (23533633532).

The spelling of 22221321310 in words is "twenty-two billion, two hundred twenty-one million, three hundred twenty-one thousand, three hundred ten".