22211212220010 has 128 divisors (see below), whose sum is σ = 66117097221120. Its totient is φ = 5259314491200.

The previous prime is 22211212219969. The next prime is 22211212220023. The reversal of 22211212220010 is 1002221211222.

It is a happy number.

22211212220010 is a `hidden beast` number, since 2 + 221 + 1 + 212 + 220 + 0 + 10 = 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 63 ways as a sum of consecutive naturals, for example, 86831856 + ... + 87087275.

It is an arithmetic number, because the mean of its divisors is an integer number (516539822040).

Almost surely, 2^{22211212220010} is an apocalyptic number.

22211212220010 is an abundant number, since it is smaller than the sum of its proper divisors (43905885001110).

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

22211212220010 is a wasteful number, since it uses less digits than its factorization.

22211212220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173919201 (or 173919195 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22211212220010 its reverse (1002221211222), we get a palindrome (23213433431232).

The spelling of 22211212220010 in words is "twenty-two trillion, two hundred eleven billion, two hundred twelve million, two hundred twenty thousand, ten".