32121222132222 has 128 divisors (see below), whose sum is σ = 78432003302400. Its totient is φ = 9699079978368.

The previous prime is 32121222132193. The next prime is 32121222132227. The reversal of 32121222132222 is 22223122212123.

32121222132222 is a `hidden beast` number, since 3 + 2 + 1 + 212 + 221 + 3 + 2 + 222 = 666.

It is a super-2 number, since 2×32121222132222² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32121222132227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66707628 + ... + 67187424.

It is an arithmetic number, because the mean of its divisors is an integer number (612750025800).

Almost surely, 2^{32121222132222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32121222132222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39216001651200).

32121222132222 is an abundant number, since it is smaller than the sum of its proper divisors (46310781170178).

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

32121222132222 is a wasteful number, since it uses less digits than its factorization.

32121222132222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482687 (or 482681 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 32121222132222 its reverse (22223122212123), we get a palindrome (54344344344345).

The spelling of 32121222132222 in words is "thirty-two trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred thirty-two thousand, two hundred twenty-two".