22210201001220 has 48 divisors (see below), whose sum is σ = 62189994229440. Its totient is φ = 5922583940736.

The previous prime is 22210201001147. The next prime is 22210201001237. The reversal of 22210201001220 is 2210010201222.

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 22210201001220.

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, 1618222 + ... + 6858501.

It is an arithmetic number, because the mean of its divisors is an integer number (1295624879780).

Almost surely, 2^{22210201001220} is an apocalyptic number.

22210201001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22210201001220 is an abundant number, since it is smaller than the sum of its proper divisors (39979793228220).

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

22210201001220 is a wasteful number, since it uses less digits than its factorization.

22210201001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520404 (or 8520402 counting only the distinct ones).

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

Adding to 22210201001220 its reverse (2210010201222), we get a palindrome (24420211202442).

The spelling of 22210201001220 in words is "twenty-two trillion, two hundred ten billion, two hundred one million, one thousand, two hundred twenty".