2120200111001 has 16 divisors (see below), whose sum is σ = 2475619651584. Its totient is φ = 1778306068224.

The previous prime is 2120200110971. The next prime is 2120200111021. The reversal of 2120200111001 is 1001110020212.

It is not a de Polignac number, because 2120200111001 - 2¹⁰ = 2120200109977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120200111021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16270220 + ... + 16400013.

It is an arithmetic number, because the mean of its divisors is an integer number (154726228224).

Almost surely, 2^{2120200111001} is an apocalyptic number.

It is an amenable number.

2120200111001 is a deficient number, since it is larger than the sum of its proper divisors (355419540583).

2120200111001 is a wasteful number, since it uses less digits than its factorization.

2120200111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32670440.

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

Adding to 2120200111001 its reverse (1001110020212), we get a palindrome (3121310131213).

The spelling of 2120200111001 in words is "two trillion, one hundred twenty billion, two hundred million, one hundred eleven thousand, one".