200111200002021 has 128 divisors (see below), whose sum is σ = 354303901532160. Its totient is φ = 97320986784000.

The previous prime is 200111200001957. The next prime is 200111200002061. The reversal of 200111200002021 is 120200002111002.

It is not a de Polignac number, because 200111200002021 - 2⁶ = 200111200001957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200111200001988 and 200111200002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200111200002061) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 231408576 + ... + 232271718.

It is an arithmetic number, because the mean of its divisors is an integer number (2767999230720).

Almost surely, 2^{200111200002021} is an apocalyptic number.

200111200002021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200111200002021 is a deficient number, since it is larger than the sum of its proper divisors (154192701530139).

200111200002021 is a wasteful number, since it uses less digits than its factorization.

200111200002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863807.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 200111200002021 its reverse (120200002111002), we get a palindrome (320311202113023).

The spelling of 200111200002021 in words is "two hundred trillion, one hundred eleven billion, two hundred million, two thousand, twenty-one".