2312211221001 has 24 divisors (see below), whose sum is σ = 3662560212480. Its totient is φ = 1394003263200.

The previous prime is 2312211220987. The next prime is 2312211221027. The reversal of 2312211221001 is 1001221122132.

2312211221001 is a `hidden beast` number, since 231 + 2 + 211 + 221 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 2312211221001 - 2¹⁰ = 2312211219977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2312211221041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61121586 + ... + 61159403.

It is an arithmetic number, because the mean of its divisors is an integer number (152606675520).

Almost surely, 2^{2312211221001} is an apocalyptic number.

It is an amenable number.

2312211221001 is a deficient number, since it is larger than the sum of its proper divisors (1350348991479).

2312211221001 is a wasteful number, since it uses less digits than its factorization.

2312211221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122281197 (or 122281194 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2312211221001 its reverse (1001221122132), we get a palindrome (3313432343133).

The spelling of 2312211221001 in words is "two trillion, three hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, one".