1200020220220 has 12 divisors (see below), whose sum is σ = 2520042462504. Its totient is φ = 480008088080.

The previous prime is 1200020220199. The next prime is 1200020220293. The reversal of 1200020220220 is 220220200021.

It is a self number, because there is not a number n which added to its sum of digits gives 1200020220220.

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, 30000505486 + ... + 30000505525.

It is an arithmetic number, because the mean of its divisors is an integer number (210003538542).

Almost surely, 2^{1200020220220} is an apocalyptic number.

1200020220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200020220220 is an abundant number, since it is smaller than the sum of its proper divisors (1320022242284).

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

1200020220220 is a wasteful number, since it uses less digits than its factorization.

1200020220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60001011020 (or 60001011018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 1200020220220 its reverse (220220200021), we get a palindrome (1420240420241).

The spelling of 1200020220220 in words is "one trillion, two hundred billion, twenty million, two hundred twenty thousand, two hundred twenty".