20211311022 has 16 divisors (see below), whose sum is σ = 46197282432. Its totient is φ = 5774660280.

The previous prime is 20211311017. The next prime is 20211311039. The reversal of 20211311022 is 22011311202.

It is a junction number, because it is equal to n+sod(n) for n = 20211310992 and 20211311010.

It is a congruent number.

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, 240610804 + ... + 240610887.

It is an arithmetic number, because the mean of its divisors is an integer number (2887330152).

Almost surely, 2^20211311022 is an apocalyptic number.

20211311022 is an abundant number, since it is smaller than the sum of its proper divisors (25985971410).

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

20211311022 is a wasteful number, since it uses less digits than its factorization.

20211311022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481221703.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20211311022 its reverse (22011311202), we get a palindrome (42222622224).

The spelling of 20211311022 in words is "twenty billion, two hundred eleven million, three hundred eleven thousand, twenty-two".