2120112002111 has 4 divisors (see below), whose sum is σ = 2120257319424. Its totient is φ = 2119966684800.

The previous prime is 2120112002089. The next prime is 2120112002119. The reversal of 2120112002111 is 1112002110212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120112002111 is a prime.

It is a super-2 number, since 2×2120112002111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120112002119) 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, 72636770 + ... + 72665951.

It is an arithmetic number, because the mean of its divisors is an integer number (530064329856).

Almost surely, 2^{2120112002111} is an apocalyptic number.

2120112002111 is a deficient number, since it is larger than the sum of its proper divisors (145317313).

2120112002111 is a wasteful number, since it uses less digits than its factorization.

2120112002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145317312.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2120112002111 its reverse (1112002110212), we get a palindrome (3232114112323).

It can be divided in two parts, 212011 and 2002111, that added together give a palindrome (2214122).

The spelling of 2120112002111 in words is "two trillion, one hundred twenty billion, one hundred twelve million, two thousand, one hundred eleven".