20120011222 has 4 divisors (see below), whose sum is σ = 30180016836. Its totient is φ = 10060005610.

The previous prime is 20120011147. The next prime is 20120011229. The reversal of 20120011222 is 22211002102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120011229) by changing a digit.

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, 5030002804 + ... + 5030002807.

It is an arithmetic number, because the mean of its divisors is an integer number (7545004209).

Almost surely, 2^20120011222 is an apocalyptic number.

20120011222 is a deficient number, since it is larger than the sum of its proper divisors (10060005614).

20120011222 is a wasteful number, since it uses less digits than its factorization.

20120011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060005613.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20120011222 its reverse (22211002102), we get a palindrome (42331013324).

The spelling of 20120011222 in words is "twenty billion, one hundred twenty million, eleven thousand, two hundred twenty-two".