2220002121101 has 6 divisors (see below), whose sum is σ = 2268241191630. Its totient is φ = 2172768031256.

The previous prime is 2220002121089. The next prime is 2220002121131. The reversal of 2220002121101 is 1011212000222.

It can be written as a sum of positive squares in only one way, i.e., 1233454572100 + 986547549001 = 1110610^2 + 993251^2 .

It is not a de Polignac number, because 2220002121101 - 2²⁶ = 2219935012237 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 (2220002121131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502488086 + ... + 502492503.

It is an arithmetic number, because the mean of its divisors is an integer number (378040198605).

Almost surely, 2^{2220002121101} is an apocalyptic number.

It is an amenable number.

2220002121101 is a deficient number, since it is larger than the sum of its proper divisors (48239070529).

2220002121101 is an equidigital number, since it uses as much as digits as its factorization.

2220002121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004980683 (or 1004980636 counting only the distinct ones).

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

Adding to 2220002121101 its reverse (1011212000222), we get a palindrome (3231214121323).

The spelling of 2220002121101 in words is "two trillion, two hundred twenty billion, two million, one hundred twenty-one thousand, one hundred one".