1200021020022 has 64 divisors (see below), whose sum is σ = 2777753793024. Its totient is φ = 341571402240.

The previous prime is 1200021019999. The next prime is 1200021020041. The reversal of 1200021020022 is 2200201200021.

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, 498793 + ... + 1627524.

It is an arithmetic number, because the mean of its divisors is an integer number (43402403016).

Almost surely, 2^{1200021020022} is an apocalyptic number.

1200021020022 is an abundant number, since it is smaller than the sum of its proper divisors (1577732773002).

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

1200021020022 is a wasteful number, since it uses less digits than its factorization.

1200021020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126853.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1200021020022 its reverse (2200201200021), we get a palindrome (3400222220043).

The spelling of 1200021020022 in words is "one trillion, two hundred billion, twenty-one million, twenty thousand, twenty-two".