2111020210001 has 4 divisors (see below), whose sum is σ = 2111807026032. Its totient is φ = 2110233393972.

The previous prime is 2111020209989. The next prime is 2111020210073. The reversal of 2111020210001 is 1000120201112.

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 2111020210001 - 2³⁴ = 2093840340817 is a prime.

It is a super-2 number, since 2×2111020210001² (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 (2111020212001) 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, 393403991 + ... + 393409356.

It is an arithmetic number, because the mean of its divisors is an integer number (527951756508).

Almost surely, 2^{2111020210001} is an apocalyptic number.

It is an amenable number.

2111020210001 is a deficient number, since it is larger than the sum of its proper divisors (786816031).

2111020210001 is an equidigital number, since it uses as much as digits as its factorization.

2111020210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786816030.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2111020210001 its reverse (1000120201112), we get a palindrome (3111140411113).

The spelling of 2111020210001 in words is "two trillion, one hundred eleven billion, twenty million, two hundred ten thousand, one".