201002011221 has 8 divisors (see below), whose sum is σ = 292366561824. Its totient is φ = 121819400720.

The previous prime is 201002011213. The next prime is 201002011229. The reversal of 201002011221 is 122110200102.

It is an interprime number because it is at equal distance from previous prime (201002011213) and next prime (201002011229).

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 201002011221 - 2³ = 201002011213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201002011197 and 201002011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002011229) 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, 3045484986 + ... + 3045485051.

It is an arithmetic number, because the mean of its divisors is an integer number (36545820228).

Almost surely, 2^201002011221 is an apocalyptic number.

It is an amenable number.

201002011221 is a deficient number, since it is larger than the sum of its proper divisors (91364550603).

201002011221 is a wasteful number, since it uses less digits than its factorization.

201002011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090970051.

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

Adding to 201002011221 its reverse (122110200102), we get a palindrome (323112211323).

The spelling of 201002011221 in words is "two hundred one billion, two million, eleven thousand, two hundred twenty-one".