201022111120021 has 8 divisors (see below), whose sum is σ = 214225228502784. Its totient is φ = 188190912536880.

The previous prime is 201022111119913. The next prime is 201022111120091. The reversal of 201022111120021 is 120021111220102.

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

It is not a de Polignac number, because 201022111120021 - 2³³ = 201013521185429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201022111119977 and 201022111120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201022111120091) 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, 92979698790 + ... + 92979700951.

It is an arithmetic number, because the mean of its divisors is an integer number (26778153562848).

Almost surely, 2^{201022111120021} is an apocalyptic number.

It is an amenable number.

201022111120021 is a deficient number, since it is larger than the sum of its proper divisors (13203117382763).

201022111120021 is a wasteful number, since it uses less digits than its factorization.

201022111120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185959399811.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201022111120021 its reverse (120021111220102), we get a palindrome (321043222340123).

The spelling of 201022111120021 in words is "two hundred one trillion, twenty-two billion, one hundred eleven million, one hundred twenty thousand, twenty-one".