200111210111021 has 32 divisors (see below), whose sum is σ = 222597877877760. Its totient is φ = 178375405824000.

The previous prime is 200111210110969. The next prime is 200111210111027. The reversal of 200111210111021 is 120111012111002.

It is not a de Polignac number, because 200111210111021 - 2⁴² = 195713163599917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200111210110987 and 200111210111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200111210111027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1343341475 + ... + 1343490431.

It is an arithmetic number, because the mean of its divisors is an integer number (6956183683680).

Almost surely, 2^{200111210111021} is an apocalyptic number.

It is an amenable number.

200111210111021 is a deficient number, since it is larger than the sum of its proper divisors (22486667766739).

200111210111021 is a wasteful number, since it uses less digits than its factorization.

200111210111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160725.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 200111210111021 its reverse (120111012111002), we get a palindrome (320222222222023).

The spelling of 200111210111021 in words is "two hundred trillion, one hundred eleven billion, two hundred ten million, one hundred eleven thousand, twenty-one".