201200011211221 has 8 divisors (see below), whose sum is σ = 219669224277888. Its totient is φ = 182760515304000.

The previous prime is 201200011211209. The next prime is 201200011211239. The reversal of 201200011211221 is 122112110002102.

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

It is a cyclic number.

It is not a de Polignac number, because 201200011211221 - 2⁵ = 201200011211189 is a prime.

It is a super-2 number, since 2×201200011211221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201200011211195 and 201200011211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200011211921) 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, 7429275700 + ... + 7429302781.

It is an arithmetic number, because the mean of its divisors is an integer number (27458653034736).

Almost surely, 2^{201200011211221} is an apocalyptic number.

It is an amenable number.

201200011211221 is a deficient number, since it is larger than the sum of its proper divisors (18469213066667).

201200011211221 is a wasteful number, since it uses less digits than its factorization.

201200011211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14858579723.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201200011211221 its reverse (122112110002102), we get a palindrome (323312121213323).

The spelling of 201200011211221 in words is "two hundred one trillion, two hundred billion, eleven million, two hundred eleven thousand, two hundred twenty-one".