20211122 has 8 divisors (see below), whose sum is σ = 30335916. Its totient is φ = 10099152.

The previous prime is 20211109. The next prime is 20211127. The reversal of 20211122 is 22111202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18913801 + 1297321 = 4349^2 + 1139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20211127) 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, 3788 + ... + 7400.

Almost surely, 2^20211122 is an apocalyptic number.

20211122 is a deficient number, since it is larger than the sum of its proper divisors (10124794).

20211122 is a wasteful number, since it uses less digits than its factorization.

20211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6412.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 20211122 is about 4495.6781468428. The cubic root of 20211122 is about 272.3935425697.

Adding to 20211122 its reverse (22111202), we get a palindrome (42322324).

The spelling of 20211122 in words is "twenty million, two hundred eleven thousand, one hundred twenty-two".