1002220021101 has 16 divisors (see below), whose sum is σ = 1453056864896. Its totient is φ = 610762908096.

The previous prime is 1002220021063. The next prime is 1002220021111. The reversal of 1002220021101 is 1011200222001.

It is not a de Polignac number, because 1002220021101 - 2⁷ = 1002220020973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002220021111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124743310 + ... + 124751343.

It is an arithmetic number, because the mean of its divisors is an integer number (90816054056).

Almost surely, 2^{1002220021101} is an apocalyptic number.

It is an amenable number.

1002220021101 is a deficient number, since it is larger than the sum of its proper divisors (450836843795).

1002220021101 is a wasteful number, since it uses less digits than its factorization.

1002220021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249494772.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002220021101 its reverse (1011200222001), we get a palindrome (2013420243102).

The spelling of 1002220021101 in words is "one trillion, two billion, two hundred twenty million, twenty-one thousand, one hundred one".