21032212321111 has 8 divisors (see below), whose sum is σ = 21545622449280. Its totient is φ = 20524669737528.

The previous prime is 21032212321097. The next prime is 21032212321129. The reversal of 21032212321111 is 11112321223012.

It is a happy number.

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 21032212321111 - 2⁷ = 21032212320983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032212321171) 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, 1466878891 + ... + 1466893228.

It is an arithmetic number, because the mean of its divisors is an integer number (2693202806160).

Almost surely, 2^{21032212321111} is an apocalyptic number.

21032212321111 is a deficient number, since it is larger than the sum of its proper divisors (513410128169).

21032212321111 is a wasteful number, since it uses less digits than its factorization.

21032212321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933772293.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21032212321111 its reverse (11112321223012), we get a palindrome (32144533544123).

The spelling of 21032212321111 in words is "twenty-one trillion, thirty-two billion, two hundred twelve million, three hundred twenty-one thousand, one hundred eleven".