2220001020101 has 4 divisors (see below), whose sum is σ = 2220010577100. Its totient is φ = 2219991463104.

The previous prime is 2220001020089. The next prime is 2220001020119. The reversal of 2220001020101 is 1010201000222.

It is a happy number.

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 869977791076 + 1350023229025 = 932726^2 + 1161905^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220001020101 - 2⁶ = 2220001020037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220001020131) 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, 4421156 + ... + 4897613.

It is an arithmetic number, because the mean of its divisors is an integer number (555002644275).

Almost surely, 2^{2220001020101} is an apocalyptic number.

It is an amenable number.

2220001020101 is a deficient number, since it is larger than the sum of its proper divisors (9556999).

2220001020101 is an equidigital number, since it uses as much as digits as its factorization.

2220001020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9556998.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2220001020101 its reverse (1010201000222), we get a palindrome (3230202020323).

The spelling of 2220001020101 in words is "two trillion, two hundred twenty billion, one million, twenty thousand, one hundred one".