201200000210021 has 8 divisors (see below), whose sum is σ = 205273623457440. Its totient is φ = 197136650919312.

The previous prime is 201200000209979. The next prime is 201200000210081. The reversal of 201200000210021 is 120012000002102.

It is a happy number.

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-201200000210021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201200000209984 and 201200000210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200000210081) 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, 2568449615 + ... + 2568527948.

It is an arithmetic number, because the mean of its divisors is an integer number (25659202932180).

Almost surely, 2^{201200000210021} is an apocalyptic number.

It is an amenable number.

201200000210021 is a deficient number, since it is larger than the sum of its proper divisors (4073623247419).

201200000210021 is an equidigital number, since it uses as much as digits as its factorization.

201200000210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5136978355.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201200000210021 its reverse (120012000002102), we get a palindrome (321212000212123).

The spelling of 201200000210021 in words is "two hundred one trillion, two hundred billion, two hundred ten thousand, twenty-one".