200121011210111 has 8 divisors (see below), whose sum is σ = 204343142343744. Its totient is φ = 195938900277120.

The previous prime is 200121011210101. The next prime is 200121011210117. The reversal of 200121011210111 is 111012110121002.

200121011210111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200121011210111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121011210117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10005040055 + ... + 10005060056.

It is an arithmetic number, because the mean of its divisors is an integer number (25542892792968).

Almost surely, 2^{200121011210111} is an apocalyptic number.

200121011210111 is a deficient number, since it is larger than the sum of its proper divisors (4222131133633).

200121011210111 is a wasteful number, since it uses less digits than its factorization.

200121011210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20010100321.

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

Adding to 200121011210111 its reverse (111012110121002), we get a palindrome (311133121331113).

It can be divided in two parts, 20012101 and 1210111, that added together give a palindrome (21222212).

The spelling of 200121011210111 in words is "two hundred trillion, one hundred twenty-one billion, eleven million, two hundred ten thousand, one hundred eleven".