2220101111021 has 4 divisors (see below), whose sum is σ = 2236073061600. Its totient is φ = 2204129160444.

The previous prime is 2220101110999. The next prime is 2220101111087. The reversal of 2220101111021 is 1201111010222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2220101111021 - 2¹⁴ = 2220101094637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220101110987 and 2220101111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220101111821) by changing a digit.

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, 7985975081 + ... + 7985975358.

It is an arithmetic number, because the mean of its divisors is an integer number (559018265400).

Almost surely, 2^{2220101111021} is an apocalyptic number.

It is an amenable number.

2220101111021 is a deficient number, since it is larger than the sum of its proper divisors (15971950579).

2220101111021 is a wasteful number, since it uses less digits than its factorization.

2220101111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15971950578.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2220101111021 its reverse (1201111010222), we get a palindrome (3421212121243).

The spelling of 2220101111021 in words is "two trillion, two hundred twenty billion, one hundred one million, one hundred eleven thousand, twenty-one".