2222220100020 has 48 divisors (see below), whose sum is σ = 6223911861888. Its totient is φ = 592430542720.

The previous prime is 2222220099997. The next prime is 2222220100031. The reversal of 2222220100020 is 200010222222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4824279 + ... + 5264798.

It is an arithmetic number, because the mean of its divisors is an integer number (129664830456).

Almost surely, 2^{2222220100020} is an apocalyptic number.

2222220100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222220100020 is an abundant number, since it is smaller than the sum of its proper divisors (4001691761868).

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

2222220100020 is a wasteful number, since it uses less digits than its factorization.

2222220100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10092760 (or 10092758 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2222220100020 its reverse (200010222222), we get a palindrome (2422230322242).

The spelling of 2222220100020 in words is "two trillion, two hundred twenty-two billion, two hundred twenty million, one hundred thousand, twenty".