20132221222 has 4 divisors (see below), whose sum is σ = 30198331836. Its totient is φ = 10066110610.

The previous prime is 20132221217. The next prime is 20132221231. The reversal of 20132221222 is 22212223102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22212223102 = 2 ⋅11106111551.

It is a self number, because there is not a number n which added to its sum of digits gives 20132221222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5033055304 + ... + 5033055307.

It is an arithmetic number, because the mean of its divisors is an integer number (7549582959).

Almost surely, 2^20132221222 is an apocalyptic number.

20132221222 is a deficient number, since it is larger than the sum of its proper divisors (10066110614).

20132221222 is a wasteful number, since it uses less digits than its factorization.

20132221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10066110613.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20132221222 its reverse (22212223102), we get a palindrome (42344444324).

The spelling of 20132221222 in words is "twenty billion, one hundred thirty-two million, two hundred twenty-one thousand, two hundred twenty-two".