20022111222210 has 96 divisors (see below), whose sum is σ = 53913900298752. Its totient is φ = 5152028542080.

The previous prime is 20022111222181. The next prime is 20022111222241. The reversal of 20022111222210 is 1222211122002.

It is a happy number.

20022111222210 is a `hidden beast` number, since 2 + 0 + 0 + 221 + 11 + 222 + 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 47 ways as a sum of consecutive naturals, for example, 33033189 + ... + 33633848.

It is an arithmetic number, because the mean of its divisors is an integer number (561603128112).

Almost surely, 2^{20022111222210} is an apocalyptic number.

20022111222210 is an abundant number, since it is smaller than the sum of its proper divisors (33891789076542).

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

20022111222210 is a wasteful number, since it uses less digits than its factorization.

20022111222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66667168 (or 66667165 counting only the distinct ones).

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

Adding to 20022111222210 its reverse (1222211122002), we get a palindrome (21244322344212).

The spelling of 20022111222210 in words is "twenty trillion, twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, two hundred ten".