20111210012222 has 32 divisors (see below), whose sum is σ = 36065046472704. Its totient is φ = 8223787440000.

The previous prime is 20111210012219. The next prime is 20111210012269. The reversal of 20111210012222 is 22221001211102.

It is a self number, because there is not a number n which added to its sum of digits gives 20111210012222.

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, 77747654 + ... + 78005897.

It is an arithmetic number, because the mean of its divisors is an integer number (1127032702272).

Almost surely, 2^{20111210012222} is an apocalyptic number.

20111210012222 is a deficient number, since it is larger than the sum of its proper divisors (15953836460482).

20111210012222 is a wasteful number, since it uses less digits than its factorization.

20111210012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155753984.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20111210012222 its reverse (22221001211102), we get a palindrome (42332211223324).

The spelling of 20111210012222 in words is "twenty trillion, one hundred eleven billion, two hundred ten million, twelve thousand, two hundred twenty-two".