1022221002101 has 4 divisors (see below), whose sum is σ = 1100853386892. Its totient is φ = 943588617312.

The previous prime is 1022221002091. The next prime is 1022221002137. The reversal of 1022221002101 is 1012001222201.

1022221002101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197304756100 + 824916246001 = 444190^2 + 908249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022221002101 - 2³⁰ = 1021147260277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221002301) 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, 39316192376 + ... + 39316192401.

It is an arithmetic number, because the mean of its divisors is an integer number (275213346723).

Almost surely, 2^{1022221002101} is an apocalyptic number.

It is an amenable number.

1022221002101 is a deficient number, since it is larger than the sum of its proper divisors (78632384791).

1022221002101 is an equidigital number, since it uses as much as digits as its factorization.

1022221002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78632384790.

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

Adding to 1022221002101 its reverse (1012001222201), we get a palindrome (2034222224302).

The spelling of 1022221002101 in words is "one trillion, twenty-two billion, two hundred twenty-one million, two thousand, one hundred one".