20102100022211 has 4 divisors (see below), whose sum is σ = 20102115803400. Its totient is φ = 20102084241024.

The previous prime is 20102100022201. The next prime is 20102100022259. The reversal of 20102100022211 is 11222000120102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102100022211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102100022201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5794241 + ... + 8589378.

It is an arithmetic number, because the mean of its divisors is an integer number (5025528950850).

Almost surely, 2^{20102100022211} is an apocalyptic number.

20102100022211 is a deficient number, since it is larger than the sum of its proper divisors (15781189).

20102100022211 is a wasteful number, since it uses less digits than its factorization.

20102100022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15781188.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20102100022211 its reverse (11222000120102), we get a palindrome (31324100142313).

The spelling of 20102100022211 in words is "twenty trillion, one hundred two billion, one hundred million, twenty-two thousand, two hundred eleven".