10221211222110 has 144 divisors (see below), whose sum is σ = 31220029107072. Its totient is φ = 2313145296000.

The previous prime is 10221211222081. The next prime is 10221211222213. The reversal of 10221211222110 is 1122211212201.

10221211222110 is a `hidden beast` number, since 1 + 0 + 221 + 211 + 2 + 221 + 10 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11028526 + ... + 11919345.

It is an arithmetic number, because the mean of its divisors is an integer number (216805757688).

Almost surely, 2^{10221211222110} is an apocalyptic number.

10221211222110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221211222110 is an abundant number, since it is smaller than the sum of its proper divisors (20998817884962).

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

10221211222110 is a wasteful number, since it uses less digits than its factorization.

10221211222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22947999 (or 22947989 counting only the distinct ones).

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

Adding to 10221211222110 its reverse (1122211212201), we get a palindrome (11343422434311).

Subtracting from 10221211222110 its reverse (1122211212201), we obtain a palindrome (9099000009909).

The spelling of 10221211222110 in words is "ten trillion, two hundred twenty-one billion, two hundred eleven million, two hundred twenty-two thousand, one hundred ten".