211112023321221 has 32 divisors (see below), whose sum is σ = 333922529766528. Its totient is φ = 117165799895040.

The previous prime is 211112023321169. The next prime is 211112023321267. The reversal of 211112023321221 is 122123320211112.

It is not a de Polignac number, because 211112023321221 - 2⁷ = 211112023321093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211112023321191 and 211112023321200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112023321721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5085300420 + ... + 5085341933.

It is an arithmetic number, because the mean of its divisors is an integer number (10435079055204).

Almost surely, 2^{211112023321221} is an apocalyptic number.

It is an amenable number.

211112023321221 is a deficient number, since it is larger than the sum of its proper divisors (122810506445307).

211112023321221 is a wasteful number, since it uses less digits than its factorization.

211112023321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10170642421.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 211112023321221 its reverse (122123320211112), we get a palindrome (333235343532333).

The spelling of 211112023321221 in words is "two hundred eleven trillion, one hundred twelve billion, twenty-three million, three hundred twenty-one thousand, two hundred twenty-one".