20221211122 has 12 divisors (see below), whose sum is σ = 35283950190. Its totient is φ = 8666233296.

The previous prime is 20221211113. The next prime is 20221211137. The reversal of 20221211122 is 22111212202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20106956401 + 114254721 = 141799^2 + 10689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20221211096 and 20221211105.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103169347 + ... + 103169542.

Almost surely, 2^20221211122 is an apocalyptic number.

20221211122 is a deficient number, since it is larger than the sum of its proper divisors (15062739068).

20221211122 is a wasteful number, since it uses less digits than its factorization.

20221211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206338905 (or 206338898 counting only the distinct ones).

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

Adding to 20221211122 its reverse (22111212202), we get a palindrome (42332423324).

The spelling of 20221211122 in words is "twenty billion, two hundred twenty-one million, two hundred eleven thousand, one hundred twenty-two".