1200222121002 has 32 divisors (see below), whose sum is σ = 2431071464640. Its totient is φ = 395001308160.

The previous prime is 1200222120989. The next prime is 1200222121051. The reversal of 1200222121002 is 2001212220021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3824503 + ... + 4126410.

It is an arithmetic number, because the mean of its divisors is an integer number (75970983270).

Almost surely, 2^{1200222121002} is an apocalyptic number.

1200222121002 is an abundant number, since it is smaller than the sum of its proper divisors (1230849343638).

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

1200222121002 is a wasteful number, since it uses less digits than its factorization.

1200222121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7951238.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1200222121002 its reverse (2001212220021), we get a palindrome (3201434341023).

The spelling of 1200222121002 in words is "one trillion, two hundred billion, two hundred twenty-two million, one hundred twenty-one thousand, two".