21122233301112 has 32 divisors (see below), whose sum is σ = 54508989166080. Its totient is φ = 6813623645280.

The previous prime is 21122233301111. The next prime is 21122233301149. The reversal of 21122233301112 is 21110333222112.

It is a super-2 number, since 2×21122233301112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122233301111) 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, 14195048518 + ... + 14195050005.

It is an arithmetic number, because the mean of its divisors is an integer number (1703405911440).

Almost surely, 2^{21122233301112} is an apocalyptic number.

It is an amenable number.

21122233301112 is an abundant number, since it is smaller than the sum of its proper divisors (33386755864968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21122233301112 is a wasteful number, since it uses less digits than its factorization.

21122233301112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28390098563 (or 28390098559 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21122233301112 its reverse (21110333222112), we get a palindrome (42232566523224).

The spelling of 21122233301112 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred thirty-three million, three hundred one thousand, one hundred twelve".