20112100222210 has 16 divisors (see below), whose sum is σ = 37084750654392. Its totient is φ = 7848624476800.

The previous prime is 20112100222171. The next prime is 20112100222267. The reversal of 20112100222210 is 1222200121102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15003591661809 + 5108508560401 = 3873447^2 + 2260201^2 .

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, 24526951081 + ... + 24526951900.

Almost surely, 2^{20112100222210} is an apocalyptic number.

20112100222210 is a deficient number, since it is larger than the sum of its proper divisors (16972650432182).

20112100222210 is a wasteful number, since it uses less digits than its factorization.

20112100222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49053903029.

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

Adding to 20112100222210 its reverse (1222200121102), we get a palindrome (21334300343312).

The spelling of 20112100222210 in words is "twenty trillion, one hundred twelve billion, one hundred million, two hundred twenty-two thousand, two hundred ten".