2220212101 has 4 divisors (see below), whose sum is σ = 2220350400. Its totient is φ = 2220073804.

The previous prime is 2220212083. The next prime is 2220212117. The reversal of 2220212101 is 1012120222.

It is a happy number.

2220212101 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, 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 2220212101 - 2¹⁵ = 2220179333 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 (2220212161) 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, 41341 + ... + 78418.

It is an arithmetic number, because the mean of its divisors is an integer number (555087600).

Almost surely, 2^2220212101 is an apocalyptic number.

It is an amenable number.

2220212101 is a deficient number, since it is larger than the sum of its proper divisors (138299).

2220212101 is a wasteful number, since it uses less digits than its factorization.

2220212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138298.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2220212101 is about 47119.1267003114. The cubic root of 2220212101 is about 1304.5622937658.

Adding to 2220212101 its reverse (1012120222), we get a palindrome (3232332323).

The spelling of 2220212101 in words is "two billion, two hundred twenty million, two hundred twelve thousand, one hundred one".