22211011212210 has 384 divisors, whose sum is σ = 61288874000640. Its totient is φ = 5573372313600.

The previous prime is 22211011212199. The next prime is 22211011212227. The reversal of 22211011212210 is 1221211011222.

22211011212210 is a `hidden beast` number, since 2 + 221 + 10 + 11 + 212 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10673238370 + ... + 10673240450.

It is an arithmetic number, because the mean of its divisors is an integer number (159606442710).

Almost surely, 2^{22211011212210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22211011212210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30644437000320).

22211011212210 is an abundant number, since it is smaller than the sum of its proper divisors (39077862788430).

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

22211011212210 is a wasteful number, since it uses less digits than its factorization.

22211011212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874 (or 2871 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22211011212210 its reverse (1221211011222), we get a palindrome (23432222223432).

The spelling of 22211011212210 in words is "twenty-two trillion, two hundred eleven billion, eleven million, two hundred twelve thousand, two hundred ten".