1222111221002 has 8 divisors (see below), whose sum is σ = 2095047807456. Its totient is φ = 523761951852.

The previous prime is 1222111220987. The next prime is 1222111221007. The reversal of 1222111221002 is 2001221112221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1222111221007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43646829308 + ... + 43646829335.

It is an arithmetic number, because the mean of its divisors is an integer number (261880975932).

Almost surely, 2^{1222111221002} is an apocalyptic number.

1222111221002 is a deficient number, since it is larger than the sum of its proper divisors (872936586454).

1222111221002 is an equidigital number, since it uses as much as digits as its factorization.

1222111221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87293658652.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222111221002 its reverse (2001221112221), we get a palindrome (3223332333223).

The spelling of 1222111221002 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, two".