22112201021210 has 16 divisors (see below), whose sum is σ = 42143253711336. Its totient is φ = 8324593325568.

The previous prime is 22112201021173. The next prime is 22112201021237. The reversal of 22112201021210 is 1212010221122.

It can be written as a sum of positive squares in 4 ways, for example, as 17545735470169 + 4566465551041 = 4188763^2 + 2136929^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 65035885187 + ... + 65035885526.

Almost surely, 2^{22112201021210} is an apocalyptic number.

22112201021210 is a deficient number, since it is larger than the sum of its proper divisors (20031052690126).

22112201021210 is a wasteful number, since it uses less digits than its factorization.

22112201021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130071770737.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22112201021210 its reverse (1212010221122), we get a palindrome (23324211242332).

The spelling of 22112201021210 in words is "twenty-two trillion, one hundred twelve billion, two hundred one million, twenty-one thousand, two hundred ten".