20002220022222 has 64 divisors (see below), whose sum is σ = 44533887201600. Its totient is φ = 6654741857280.

The previous prime is 20002220022163. The next prime is 20002220022229. The reversal of 20002220022222 is 22222002220002.

20002220022222 is a `hidden beast` number, since 200 + 0 + 2 + 220 + 0 + 22 + 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 = 20002220022195 and 20002220022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002220022229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62400054 + ... + 62719782.

It is an arithmetic number, because the mean of its divisors is an integer number (695841987525).

Almost surely, 2^{20002220022222} is an apocalyptic number.

20002220022222 is an abundant number, since it is smaller than the sum of its proper divisors (24531667179378).

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

20002220022222 is a wasteful number, since it uses less digits than its factorization.

20002220022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321938 (or 321932 counting only the distinct ones).

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

Adding to 20002220022222 its reverse (22222002220002), we get a palindrome (42224222242224).

The spelling of 20002220022222 in words is "twenty trillion, two billion, two hundred twenty million, twenty-two thousand, two hundred twenty-two".