22012001210220 has 96 divisors (see below), whose sum is σ = 70535293989888. Its totient is φ = 5024393839872.

The previous prime is 22012001210167. The next prime is 22012001210237. The reversal of 22012001210220 is 2201210021022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22012001210220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35739727 + ... + 36350406.

It is an arithmetic number, because the mean of its divisors is an integer number (734742645728).

Almost surely, 2^{22012001210220} is an apocalyptic number.

22012001210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012001210220 is an abundant number, since it is smaller than the sum of its proper divisors (48523292779668).

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

22012001210220 is a wasteful number, since it uses less digits than its factorization.

22012001210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72090879 (or 72090877 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22012001210220 its reverse (2201210021022), we get a palindrome (24213211231242).

The spelling of 22012001210220 in words is "twenty-two trillion, twelve billion, one million, two hundred ten thousand, two hundred twenty".