201000100012221 has 8 divisors (see below), whose sum is σ = 270653600016864. Its totient is φ = 132673333341200.

The previous prime is 201000100012211. The next prime is 201000100012267. The reversal of 201000100012221 is 122210001000102.

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 201000100012221 - 2⁹ = 201000100011709 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201000100012197 and 201000100012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000100012211) 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, 331683333051 + ... + 331683333656.

It is an arithmetic number, because the mean of its divisors is an integer number (33831700002108).

Almost surely, 2^{201000100012221} is an apocalyptic number.

It is an amenable number.

201000100012221 is a deficient number, since it is larger than the sum of its proper divisors (69653500004643).

201000100012221 is a wasteful number, since it uses less digits than its factorization.

201000100012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663366666811.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201000100012221 its reverse (122210001000102), we get a palindrome (323210101012323).

The spelling of 201000100012221 in words is "two hundred one trillion, one hundred million, twelve thousand, two hundred twenty-one".