20211210102222 has 36 divisors (see below), whose sum is σ = 45777690451584. Its totient is φ = 6444153942600.

The previous prime is 20211210102217. The next prime is 20211210102229. The reversal of 20211210102222 is 22220101211202.

It is a happy number.

20211210102222 is a `hidden beast` number, since 20 + 211 + 210 + 1 + 0 + 2 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20211210102195 and 20211210102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211210102229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1061280654 + ... + 1061299697.

It is an arithmetic number, because the mean of its divisors is an integer number (1271602512544).

Almost surely, 2^{20211210102222} is an apocalyptic number.

20211210102222 is an abundant number, since it is smaller than the sum of its proper divisors (25566480349362).

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

20211210102222 is a wasteful number, since it uses less digits than its factorization.

20211210102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122580405 (or 2122580379 counting only the distinct ones).

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

Adding to 20211210102222 its reverse (22220101211202), we get a palindrome (42431311313424).

The spelling of 20211210102222 in words is "twenty trillion, two hundred eleven billion, two hundred ten million, one hundred two thousand, two hundred twenty-two".