22211022210 has 32 divisors (see below), whose sum is σ = 57406950720. Its totient is φ = 5467328448.

The previous prime is 22211022181. The next prime is 22211022221. The reversal of 22211022210 is 1222011222.

It is a super-2 number, since 2×22211022210² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22211022210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28475280 + ... + 28476059.

It is an arithmetic number, because the mean of its divisors is an integer number (1793967210).

Almost surely, 2^22211022210 is an apocalyptic number.

22211022210 is an abundant number, since it is smaller than the sum of its proper divisors (35195928510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22211022210 is a wasteful number, since it uses less digits than its factorization.

22211022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56951362.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22211022210 its reverse (1222011222), we get a palindrome (23433033432).

The spelling of 22211022210 in words is "twenty-two billion, two hundred eleven million, twenty-two thousand, two hundred ten".