1220221101002 has 8 divisors (see below), whose sum is σ = 1831012839936. Its totient is φ = 609883487692.

The previous prime is 1220221100951. The next prime is 1220221101019. The reversal of 1220221101002 is 2001011220221.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113524688 + ... + 113535435.

It is an arithmetic number, because the mean of its divisors is an integer number (228876604992).

Almost surely, 2^{1220221101002} is an apocalyptic number.

1220221101002 is a deficient number, since it is larger than the sum of its proper divisors (610791738934).

1220221101002 is a wasteful number, since it uses less digits than its factorization.

1220221101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227062812.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220221101002 its reverse (2001011220221), we get a palindrome (3221232321223).

The spelling of 1220221101002 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, one hundred one thousand, two".