1022200000020 has 96 divisors (see below), whose sum is σ = 3191495610240. Its totient is φ = 271616567040.

The previous prime is 1022199999991. The next prime is 1022200000043. The reversal of 1022200000020 is 200000022201.

It is a super-3 number, since 3×1022200000020³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1022199999948 and 1022200000011.

It is a congruent number.

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, 3216522 + ... + 3520001.

It is an arithmetic number, because the mean of its divisors is an integer number (33244745940).

Almost surely, 2^{1022200000020} is an apocalyptic number.

1022200000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022200000020 is an abundant number, since it is smaller than the sum of its proper divisors (2169295610220).

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

1022200000020 is a wasteful number, since it uses less digits than its factorization.

1022200000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6736822 (or 6736814 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 1022200000020 its reverse (200000022201), we get a palindrome (1222200022221).

The spelling of 1022200000020 in words is "one trillion, twenty-two billion, two hundred million, twenty", and thus it is an aban number.