201421200111 has 8 divisors (see below), whose sum is σ = 268598862000. Its totient is φ = 134262169152.

The previous prime is 201421200091. The next prime is 201421200137. The reversal of 201421200111 is 111002124102.

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

It is not a de Polignac number, because 201421200111 - 2⁷ = 201421199983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201421208111) 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, 4632486 + ... + 4675763.

It is an arithmetic number, because the mean of its divisors is an integer number (33574857750).

Almost surely, 2^201421200111 is an apocalyptic number.

201421200111 is a deficient number, since it is larger than the sum of its proper divisors (67177661889).

201421200111 is an equidigital number, since it uses as much as digits as its factorization.

201421200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9315465.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201421200111 its reverse (111002124102), we get a palindrome (312423324213).

The spelling of 201421200111 in words is "two hundred one billion, four hundred twenty-one million, two hundred thousand, one hundred eleven".