20121022022 has 8 divisors (see below), whose sum is σ = 30997250256. Its totient is φ = 9788605272.

The previous prime is 20121022013. The next prime is 20121022069. The reversal of 20121022022 is 22022012102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20121021988 and 20121022006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135952778 + ... + 135952925.

It is an arithmetic number, because the mean of its divisors is an integer number (3874656282).

Almost surely, 2^20121022022 is an apocalyptic number.

20121022022 is a deficient number, since it is larger than the sum of its proper divisors (10876228234).

20121022022 is a wasteful number, since it uses less digits than its factorization.

20121022022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271905742.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20121022022 its reverse (22022012102), we get a palindrome (42143034124).

The spelling of 20121022022 in words is "twenty billion, one hundred twenty-one million, twenty-two thousand, twenty-two".