211002111020221 has 8 divisors (see below), whose sum is σ = 211055461225088. Its totient is φ = 210948761808000.

The previous prime is 211002111020203. The next prime is 211002111020347. The reversal of 211002111020221 is 122020111200112.

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 211002111020221 - 2²³ = 211002102631613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211002111020195 and 211002111020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211002111020201) 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, 616359661 + ... + 616701901.

It is an arithmetic number, because the mean of its divisors is an integer number (26381932653136).

Almost surely, 2^{211002111020221} is an apocalyptic number.

It is an amenable number.

211002111020221 is a deficient number, since it is larger than the sum of its proper divisors (53350204867).

211002111020221 is a wasteful number, since it uses less digits than its factorization.

211002111020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496323.

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

Adding to 211002111020221 its reverse (122020111200112), we get a palindrome (333022222220333).

The spelling of 211002111020221 in words is "two hundred eleven trillion, two billion, one hundred eleven million, twenty thousand, two hundred twenty-one".