2210021021101 has 4 divisors (see below), whose sum is σ = 2210028039100. Its totient is φ = 2210014003104.

The previous prime is 2210021021051. The next prime is 2210021021107. The reversal of 2210021021101 is 1011201200122.

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 533381908900 + 1676639112201 = 730330^2 + 1294851^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210021021101 - 2⁷ = 2210021020973 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 (2210021021107) 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, 3013296 + ... + 3674233.

It is an arithmetic number, because the mean of its divisors is an integer number (552507009775).

Almost surely, 2^{2210021021101} is an apocalyptic number.

It is an amenable number.

2210021021101 is a deficient number, since it is larger than the sum of its proper divisors (7017999).

2210021021101 is an equidigital number, since it uses as much as digits as its factorization.

2210021021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7017998.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2210021021101 its reverse (1011201200122), we get a palindrome (3221222221223).

The spelling of 2210021021101 in words is "two trillion, two hundred ten billion, twenty-one million, twenty-one thousand, one hundred one".