20120102222 has 32 divisors (see below), whose sum is σ = 33745054464. Its totient is φ = 8918078400.

The previous prime is 20120102213. The next prime is 20120102279. The reversal of 20120102222 is 22220102102.

It is a junction number, because it is equal to n+sod(n) for n = 20120102197 and 20120102206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566447 + ... + 600917.

It is an arithmetic number, because the mean of its divisors is an integer number (1054532952).

Almost surely, 2^20120102222 is an apocalyptic number.

20120102222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20120102222 is a deficient number, since it is larger than the sum of its proper divisors (13624952242).

20120102222 is a wasteful number, since it uses less digits than its factorization.

20120102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35144.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20120102222 its reverse (22220102102), we get a palindrome (42340204324).

The spelling of 20120102222 in words is "twenty billion, one hundred twenty million, one hundred two thousand, two hundred twenty-two".