20022221011222 has 16 divisors (see below), whose sum is σ = 31410516107520. Its totient is φ = 9554031963432.

The previous prime is 20022221011213. The next prime is 20022221011319. The reversal of 20022221011222 is 22211012222002.

It is a self number, because there is not a number n which added to its sum of digits gives 20022221011222.

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, 495726588 + ... + 495766975.

It is an arithmetic number, because the mean of its divisors is an integer number (1963157256720).

Almost surely, 2^{20022221011222} is an apocalyptic number.

20022221011222 is a deficient number, since it is larger than the sum of its proper divisors (11388295096298).

20022221011222 is a wasteful number, since it uses less digits than its factorization.

20022221011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991494027.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20022221011222 its reverse (22211012222002), we get a palindrome (42233233233224).

The spelling of 20022221011222 in words is "twenty trillion, twenty-two billion, two hundred twenty-one million, eleven thousand, two hundred twenty-two".