20120021202222 has 48 divisors (see below), whose sum is σ = 43849573447680. Its totient is φ = 6667373331216.

The previous prime is 20120021202209. The next prime is 20120021202257. The reversal of 20120021202222 is 22220212002102.

20120021202222 is a `hidden beast` number, since 20 + 1 + 200 + 21 + 202 + 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 = 20120021202195 and 20120021202204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2636772 + ... + 6869687.

It is an arithmetic number, because the mean of its divisors is an integer number (913532780160).

Almost surely, 2^{20120021202222} is an apocalyptic number.

20120021202222 is an abundant number, since it is smaller than the sum of its proper divisors (23729552245458).

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

20120021202222 is a wasteful number, since it uses less digits than its factorization.

20120021202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9507157 (or 9507154 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20120021202222 its reverse (22220212002102), we get a palindrome (42340233204324).

The spelling of 20120021202222 in words is "twenty trillion, one hundred twenty billion, twenty-one million, two hundred two thousand, two hundred twenty-two".