20202222222 has 96 divisors (see below), whose sum is σ = 55328774592. Its totient is φ = 5184041472.

The previous prime is 20202222217. The next prime is 20202222241. The reversal of 20202222222 is 22222220202.

20202222222 is a `hidden beast` number, since 20 + 202 + 222 + 222 = 666.

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

20202222222 is a modest number, since divided by 222222 gives 20202 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20202222195 and 20202222204.

It is a congruent number.

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, 106063 + ... + 227274.

It is an arithmetic number, because the mean of its divisors is an integer number (576341402).

Almost surely, 2^20202222222 is an apocalyptic number.

20202222222 is an abundant number, since it is smaller than the sum of its proper divisors (35126552370).

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

20202222222 is a wasteful number, since it uses less digits than its factorization.

20202222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333402 (or 333399 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20202222222 its reverse (22222220202), we get a palindrome (42424442424).

The spelling of 20202222222 in words is "twenty billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty-two".