20011210012222 has 32 divisors (see below), whose sum is σ = 35419860330624. Its totient is φ = 8359323708000.

The previous prime is 20011210012193. The next prime is 20011210012253. The reversal of 20011210012222 is 22221001211002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20011210012196 and 20011210012205.

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, 154052404 + ... + 154182247.

It is an arithmetic number, because the mean of its divisors is an integer number (1106870635332).

Almost surely, 2^{20011210012222} is an apocalyptic number.

20011210012222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20011210012222 is a deficient number, since it is larger than the sum of its proper divisors (15408650318402).

20011210012222 is a wasteful number, since it uses less digits than its factorization.

20011210012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308234904.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20011210012222 its reverse (22221001211002), we get a palindrome (42232211223224).

The spelling of 20011210012222 in words is "twenty trillion, eleven billion, two hundred ten million, twelve thousand, two hundred twenty-two".