20222311121 has 4 divisors (see below), whose sum is σ = 21411858852. Its totient is φ = 19032763392.

The previous prime is 20222311103. The next prime is 20222311147. The reversal of 20222311121 is 12111322202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9481890625 + 10740420496 = 97375^2 + 103636^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222311121 - 2¹⁴ = 20222294737 is a prime.

It is a super-4 number, since 4×20222311121⁴ (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1189547713 = 20222311121 / (2 + 0 + 2 + 2 + 2 + 3 + 1 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20222311121.

It is not an unprimeable number, because it can be changed into a prime (20222311181) 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, 594773840 + ... + 594773873.

It is an arithmetic number, because the mean of its divisors is an integer number (5352964713).

Almost surely, 2^20222311121 is an apocalyptic number.

It is an amenable number.

20222311121 is a deficient number, since it is larger than the sum of its proper divisors (1189547731).

20222311121 is a wasteful number, since it uses less digits than its factorization.

20222311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189547730.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20222311121 its reverse (12111322202), we get a palindrome (32333633323).

The spelling of 20222311121 in words is "twenty billion, two hundred twenty-two million, three hundred eleven thousand, one hundred twenty-one".