20100011211222 has 32 divisors (see below), whose sum is σ = 40720962038400. Its totient is φ = 6613436964288.

The previous prime is 20100011211173. The next prime is 20100011211227. The reversal of 20100011211222 is 22211211000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100011211227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31748272 + ... + 32375187.

It is an arithmetic number, because the mean of its divisors is an integer number (1272530063700).

Almost surely, 2^{20100011211222} is an apocalyptic number.

20100011211222 is an abundant number, since it is smaller than the sum of its proper divisors (20620950827178).

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

20100011211222 is a wasteful number, since it uses less digits than its factorization.

20100011211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64124140.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20100011211222 its reverse (22211211000102), we get a palindrome (42311222211324).

It can be divided in two parts, 2010001 and 1211222, that added together give a palindrome (3221223).

The spelling of 20100011211222 in words is "twenty trillion, one hundred billion, eleven million, two hundred eleven thousand, two hundred twenty-two".