213222321102021 has 16 divisors (see below), whose sum is σ = 354447494819328. Its totient is φ = 110764842130800.

The previous prime is 213222321101981. The next prime is 213222321102143. The reversal of 213222321102021 is 120201123222312.

It is not a de Polignac number, because 213222321102021 - 2⁶ = 213222321101957 is a prime.

It is a super-2 number, since 2×213222321102021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213222321101982 and 213222321102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213222321106021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461520175315 + ... + 461520175776.

It is an arithmetic number, because the mean of its divisors is an integer number (22152968426208).

Almost surely, 2^{213222321102021} is an apocalyptic number.

213222321102021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

213222321102021 is a deficient number, since it is larger than the sum of its proper divisors (141225173717307).

213222321102021 is a wasteful number, since it uses less digits than its factorization.

213222321102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923040351112.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 213222321102021 its reverse (120201123222312), we get a palindrome (333423444324333).

The spelling of 213222321102021 in words is "two hundred thirteen trillion, two hundred twenty-two billion, three hundred twenty-one million, one hundred two thousand, twenty-one".