2210001201121 has 6 divisors (see below), whose sum is σ = 2570817723810. Its totient is φ = 1894286743776.

The previous prime is 2210001201113. The next prime is 2210001201127. The reversal of 2210001201121 is 1211021000122.

It can be written as a sum of positive squares in only one way, i.e., 2020275620496 + 189725580625 = 1421364^2 + 435575^2 .

It is not a de Polignac number, because 2210001201121 - 2³ = 2210001201113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2210001201127) 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, 22551032616 + ... + 22551032713.

It is an arithmetic number, because the mean of its divisors is an integer number (428469620635).

Almost surely, 2^{2210001201121} is an apocalyptic number.

It is an amenable number.

2210001201121 is a deficient number, since it is larger than the sum of its proper divisors (360816522689).

2210001201121 is an equidigital number, since it uses as much as digits as its factorization.

2210001201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45102065343 (or 45102065336 counting only the distinct ones).

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

Adding to 2210001201121 its reverse (1211021000122), we get a palindrome (3421022201243).

The spelling of 2210001201121 in words is "two trillion, two hundred ten billion, one million, two hundred one thousand, one hundred twenty-one".