22021211020220 has 12 divisors (see below), whose sum is σ = 46244543142504. Its totient is φ = 8808484408080.

The previous prime is 22021211020217. The next prime is 22021211020247. The reversal of 22021211020220 is 2202011212022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550530275486 + ... + 550530275525.

It is an arithmetic number, because the mean of its divisors is an integer number (3853711928542).

Almost surely, 2^{22021211020220} is an apocalyptic number.

22021211020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021211020220 is an abundant number, since it is smaller than the sum of its proper divisors (24223332122284).

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

22021211020220 is a wasteful number, since it uses less digits than its factorization.

22021211020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101060551020 (or 1101060551018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22021211020220 its reverse (2202011212022), we get a palindrome (24223222232242).

The spelling of 22021211020220 in words is "twenty-two trillion, twenty-one billion, two hundred eleven million, twenty thousand, two hundred twenty".