2210120001 has 24 divisors (see below), whose sum is σ = 3315560040. Its totient is φ = 1417464576.

The previous prime is 2210119993. The next prime is 2210120027. The reversal of 2210120001 is 1000210122.

It can be written as a sum of positive squares in 4 ways, for example, as 626000400 + 1584119601 = 25020^2 + 39801^2 .

It is not a de Polignac number, because 2210120001 - 2³ = 2210119993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2210120051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7650 + ... + 66923.

It is an arithmetic number, because the mean of its divisors is an integer number (138148335).

Almost surely, 2^2210120001 is an apocalyptic number.

It is an amenable number.

2210120001 is a deficient number, since it is larger than the sum of its proper divisors (1105440039).

2210120001 is a wasteful number, since it uses less digits than its factorization.

2210120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74705 (or 74702 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2210120001 is about 47011.9133943727. The cubic root of 2210120001 is about 1302.5826372219.

Adding to 2210120001 its reverse (1000210122), we get a palindrome (3210330123).

The spelling of 2210120001 in words is "two billion, two hundred ten million, one hundred twenty thousand, one".