22211212210 has 32 divisors (see below), whose sum is σ = 44265724992. Its totient is φ = 7956252480.

The previous prime is 22211212189. The next prime is 22211212223. The reversal of 22211212210 is 1221211222.

It is a happy number.

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, 1499497 + ... + 1514236.

It is an arithmetic number, because the mean of its divisors is an integer number (1383303906).

Almost surely, 2^22211212210 is an apocalyptic number.

22211212210 is a deficient number, since it is larger than the sum of its proper divisors (22054512782).

22211212210 is a wasteful number, since it uses less digits than its factorization.

22211212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013818.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22211212210 its reverse (1221211222), we get a palindrome (23432423432).

The spelling of 22211212210 in words is "twenty-two billion, two hundred eleven million, two hundred twelve thousand, two hundred ten".