20102211022 has 4 divisors (see below), whose sum is σ = 30153316536. Its totient is φ = 10051105510.

The previous prime is 20102211013. The next prime is 20102211079. The reversal of 20102211022 is 22011220102.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20102210993 and 20102211011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025552754 + ... + 5025552757.

It is an arithmetic number, because the mean of its divisors is an integer number (7538329134).

Almost surely, 2^20102211022 is an apocalyptic number.

20102211022 is a deficient number, since it is larger than the sum of its proper divisors (10051105514).

20102211022 is a wasteful number, since it uses less digits than its factorization.

20102211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051105513.

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

Adding to 20102211022 its reverse (22011220102), we get a palindrome (42113431124).

The spelling of 20102211022 in words is "twenty billion, one hundred two million, two hundred eleven thousand, twenty-two".