2212122102001 has 4 divisors (see below), whose sum is σ = 2528139545152. Its totient is φ = 1896104658852.

The previous prime is 2212122101999. The next prime is 2212122102017. The reversal of 2212122102001 is 1002012212122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2212122102001 - 2¹ = 2212122101999 is a prime.

It is a super-2 number, since 2×2212122102001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212122102101) 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, 158008721565 + ... + 158008721578.

It is an arithmetic number, because the mean of its divisors is an integer number (632034886288).

Almost surely, 2^{2212122102001} is an apocalyptic number.

It is an amenable number.

2212122102001 is a deficient number, since it is larger than the sum of its proper divisors (316017443151).

2212122102001 is an equidigital number, since it uses as much as digits as its factorization.

2212122102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316017443150.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2212122102001 its reverse (1002012212122), we get a palindrome (3214134314123).

The spelling of 2212122102001 in words is "two trillion, two hundred twelve billion, one hundred twenty-two million, one hundred two thousand, one".