20221123012 has 6 divisors (see below), whose sum is σ = 35386965278. Its totient is φ = 10110561504.

The previous prime is 20221123001. The next prime is 20221123031. The reversal of 20221123012 is 21032112202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19216613376 + 1004509636 = 138624^2 + 31694^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527640373 + ... + 2527640380.

Almost surely, 2^20221123012 is an apocalyptic number.

It is an amenable number.

20221123012 is a deficient number, since it is larger than the sum of its proper divisors (15165842266).

20221123012 is a wasteful number, since it uses less digits than its factorization.

20221123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055280757 (or 5055280755 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20221123012 its reverse (21032112202), we get a palindrome (41253235214).

The spelling of 20221123012 in words is "twenty billion, two hundred twenty-one million, one hundred twenty-three thousand, twelve".