211221322020232 has 16 divisors (see below), whose sum is σ = 396042812352000. Its totient is φ = 105609905393040.

The previous prime is 211221322020223. The next prime is 211221322020353. The reversal of 211221322020232 is 232020223122112.

It is a super-2 number, since 2×211221322020232² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211221322020197 and 211221322020206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93263232 + ... + 95501167.

It is an arithmetic number, because the mean of its divisors is an integer number (24752675772000).

Almost surely, 2^{211221322020232} is an apocalyptic number.

It is an amenable number.

211221322020232 is a deficient number, since it is larger than the sum of its proper divisors (184821490331768).

211221322020232 is a wasteful number, since it uses less digits than its factorization.

211221322020232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188904276 (or 188904272 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 211221322020232 its reverse (232020223122112), we get a palindrome (443241545142344).

The spelling of 211221322020232 in words is "two hundred eleven trillion, two hundred twenty-one billion, three hundred twenty-two million, twenty thousand, two hundred thirty-two".