2120011001101 has 4 divisors (see below), whose sum is σ = 2422869715552. Its totient is φ = 1817152286652.

The previous prime is 2120011001071. The next prime is 2120011001153. The reversal of 2120011001101 is 1011001100212.

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 2120011001101 - 2³³ = 2111421066509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120011001161) 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, 151429357215 + ... + 151429357228.

It is an arithmetic number, because the mean of its divisors is an integer number (605717428888).

Almost surely, 2^{2120011001101} is an apocalyptic number.

It is an amenable number.

2120011001101 is a deficient number, since it is larger than the sum of its proper divisors (302858714451).

2120011001101 is an equidigital number, since it uses as much as digits as its factorization.

2120011001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302858714450.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2120011001101 its reverse (1011001100212), we get a palindrome (3131012101313).

The spelling of 2120011001101 in words is "two trillion, one hundred twenty billion, eleven million, one thousand, one hundred one".