2101222010001 has 4 divisors (see below), whose sum is σ = 2801629346672. Its totient is φ = 1400814673332.

The previous prime is 2101222009981. The next prime is 2101222010003. The reversal of 2101222010001 is 1000102221012.

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 not a de Polignac number, because 2101222010001 - 2³³ = 2092632075409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101222010003) 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, 350203668331 + ... + 350203668336.

It is an arithmetic number, because the mean of its divisors is an integer number (700407336668).

Almost surely, 2^{2101222010001} is an apocalyptic number.

It is an amenable number.

2101222010001 is a deficient number, since it is larger than the sum of its proper divisors (700407336671).

2101222010001 is an equidigital number, since it uses as much as digits as its factorization.

2101222010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700407336670.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2101222010001 its reverse (1000102221012), we get a palindrome (3101324231013).

The spelling of 2101222010001 in words is "two trillion, one hundred one billion, two hundred twenty-two million, ten thousand, one".