201022012222021 has 8 divisors (see below), whose sum is σ = 201197362671360. Its totient is φ = 200846693147328.

The previous prime is 201022012222007. The next prime is 201022012222043. The reversal of 201022012222021 is 120222210220102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201022012222021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201022012222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201022012222921) 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, 4985370 + ... + 20661508.

It is an arithmetic number, because the mean of its divisors is an integer number (25149670333920).

Almost surely, 2^{201022012222021} is an apocalyptic number.

It is an amenable number.

201022012222021 is a deficient number, since it is larger than the sum of its proper divisors (175350449339).

201022012222021 is a wasteful number, since it uses less digits than its factorization.

201022012222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15687323.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201022012222021 its reverse (120222210220102), we get a palindrome (321244222442123).

The spelling of 201022012222021 in words is "two hundred one trillion, twenty-two billion, twelve million, two hundred twenty-two thousand, twenty-one".