201022102231 has 4 divisors (see below), whose sum is σ = 212846931792. Its totient is φ = 189197272672.

The previous prime is 201022102219. The next prime is 201022102261. The reversal of 201022102231 is 132201220102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201022102231 - 2²¹ = 201020005079 is a prime.

It is a super-2 number, since 2×201022102231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201022102201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5912414755 + ... + 5912414788.

It is an arithmetic number, because the mean of its divisors is an integer number (53211732948).

Almost surely, 2^201022102231 is an apocalyptic number.

201022102231 is a deficient number, since it is larger than the sum of its proper divisors (11824829561).

201022102231 is a wasteful number, since it uses less digits than its factorization.

201022102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11824829560.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 201022102231 its reverse (132201220102), we get a palindrome (333223322333).

The spelling of 201022102231 in words is "two hundred one billion, twenty-two million, one hundred two thousand, two hundred thirty-one".