200112012002021 has 4 divisors (see below), whose sum is σ = 228699442288032. Its totient is φ = 171524581716012.

The previous prime is 200112012001991. The next prime is 200112012002041. The reversal of 200112012002021 is 120200210211002.

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 200112012002021 - 2¹⁰ = 200112012000997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200112012001987 and 200112012002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200112012002041) 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, 14293715142995 + ... + 14293715143008.

It is an arithmetic number, because the mean of its divisors is an integer number (57174860572008).

Almost surely, 2^{200112012002021} is an apocalyptic number.

It is an amenable number.

200112012002021 is a deficient number, since it is larger than the sum of its proper divisors (28587430286011).

200112012002021 is an equidigital number, since it uses as much as digits as its factorization.

200112012002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28587430286010.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200112012002021 its reverse (120200210211002), we get a palindrome (320312222213023).

The spelling of 200112012002021 in words is "two hundred trillion, one hundred twelve billion, twelve million, two thousand, twenty-one".