1212200221002 has 32 divisors (see below), whose sum is σ = 2486382041088. Its totient is φ = 393778899696.

The previous prime is 1212200220971. The next prime is 1212200221061. The reversal of 1212200221002 is 2001220022121.

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, 5188698 + ... + 5417285.

It is an arithmetic number, because the mean of its divisors is an integer number (77699438784).

Almost surely, 2^{1212200221002} is an apocalyptic number.

1212200221002 is an abundant number, since it is smaller than the sum of its proper divisors (1274181820086).

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

1212200221002 is a wasteful number, since it uses less digits than its factorization.

1212200221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10606474.

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

Adding to 1212200221002 its reverse (2001220022121), we get a palindrome (3213420243123).

The spelling of 1212200221002 in words is "one trillion, two hundred twelve billion, two hundred million, two hundred twenty-one thousand, two".