20102202211 has 32 divisors (see below), whose sum is σ = 26388028800. Its totient is φ = 14860025856.

The previous prime is 20102202203. The next prime is 20102202221. The reversal of 20102202211 is 11220220102.

It is a happy number.

It is not a de Polignac number, because 20102202211 - 2³ = 20102202203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20102202191 and 20102202200.

It is not an unprimeable number, because it can be changed into a prime (20102202221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164515 + ... + 259363.

It is an arithmetic number, because the mean of its divisors is an integer number (824625900).

Almost surely, 2^20102202211 is an apocalyptic number.

20102202211 is a deficient number, since it is larger than the sum of its proper divisors (6285826589).

20102202211 is a wasteful number, since it uses less digits than its factorization.

20102202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95023.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20102202211 its reverse (11220220102), we get a palindrome (31322422313).

The spelling of 20102202211 in words is "twenty billion, one hundred two million, two hundred two thousand, two hundred eleven".