1220101011002 has 8 divisors (see below), whose sum is σ = 1937807488116. Its totient is φ = 574165181632.

The previous prime is 1220101010993. The next prime is 1220101011047. The reversal of 1220101011002 is 2001101010221.

It can be written as a sum of positive squares in 2 ways, for example, as 962535625921 + 257565385081 = 981089^2 + 507509^2 .

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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17942661893 + ... + 17942661960.

Almost surely, 2^{1220101011002} is an apocalyptic number.

1220101011002 is a deficient number, since it is larger than the sum of its proper divisors (717706477114).

1220101011002 is a wasteful number, since it uses less digits than its factorization.

1220101011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35885323872.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1220101011002 its reverse (2001101010221), we get a palindrome (3221202021223).

The spelling of 1220101011002 in words is "one trillion, two hundred twenty billion, one hundred one million, eleven thousand, two".