2120122021001 has 4 divisors (see below), whose sum is σ = 2122990928400. Its totient is φ = 2117253113604.

The previous prime is 2120122020983. The next prime is 2120122021019. The reversal of 2120122021001 is 1001202210212.

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 an interprime number because it is at equal distance from previous prime (2120122020983) and next prime (2120122021019).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120122021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120122321001) 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, 1434452591 + ... + 1434454068.

It is an arithmetic number, because the mean of its divisors is an integer number (530747732100).

Almost surely, 2^{2120122021001} is an apocalyptic number.

It is an amenable number.

2120122021001 is a deficient number, since it is larger than the sum of its proper divisors (2868907399).

2120122021001 is an equidigital number, since it uses as much as digits as its factorization.

2120122021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868907398.

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

Adding to 2120122021001 its reverse (1001202210212), we get a palindrome (3121324231213).

The spelling of 2120122021001 in words is "two trillion, one hundred twenty billion, one hundred twenty-two million, twenty-one thousand, one".