20120211222 has 16 divisors (see below), whose sum is σ = 40749795840. Its totient is φ = 6621841512.

The previous prime is 20120211203. The next prime is 20120211233. The reversal of 20120211222 is 22211202102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21223378 + ... + 21224325.

It is an arithmetic number, because the mean of its divisors is an integer number (2546862240).

Almost surely, 2^20120211222 is an apocalyptic number.

20120211222 is an abundant number, since it is smaller than the sum of its proper divisors (20629584618).

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

20120211222 is a wasteful number, since it uses less digits than its factorization.

20120211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42447787.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20120211222 its reverse (22211202102), we get a palindrome (42331413324).

The spelling of 20120211222 in words is "twenty billion, one hundred twenty million, two hundred eleven thousand, two hundred twenty-two".