1200022221002 has 64 divisors (see below), whose sum is σ = 2086051968000. Its totient is φ = 512346257280.

The previous prime is 1200022221001. The next prime is 1200022221011. The reversal of 1200022221002 is 2001222200021.

It is not an unprimeable number, because it can be changed into a prime (1200022221001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27951749 + ... + 27994647.

It is an arithmetic number, because the mean of its divisors is an integer number (32594562000).

Almost surely, 2^{1200022221002} is an apocalyptic number.

1200022221002 is a deficient number, since it is larger than the sum of its proper divisors (886029746998).

1200022221002 is a wasteful number, since it uses less digits than its factorization.

1200022221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43931.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1200022221002 its reverse (2001222200021), we get a palindrome (3201244421023).

The spelling of 1200022221002 in words is "one trillion, two hundred billion, twenty-two million, two hundred twenty-one thousand, two".