201000021002221 has 16 divisors (see below), whose sum is σ = 234065761098624. Its totient is φ = 169022622060864.

The previous prime is 201000021002113. The next prime is 201000021002267. The reversal of 201000021002221 is 122200120000102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201000021002221 - 2¹³ = 201000020994029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000021002821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14878255 + ... + 24967228.

It is an arithmetic number, because the mean of its divisors is an integer number (14629110068664).

Almost surely, 2^{201000021002221} is an apocalyptic number.

It is an amenable number.

201000021002221 is a deficient number, since it is larger than the sum of its proper divisors (33065740096403).

201000021002221 is a wasteful number, since it uses less digits than its factorization.

201000021002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39859140.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201000021002221 its reverse (122200120000102), we get a palindrome (323200141002323).

The spelling of 201000021002221 in words is "two hundred one trillion, twenty-one million, two thousand, two hundred twenty-one".