22120022202021 has 24 divisors (see below), whose sum is σ = 33302037157376. Its totient is φ = 14132428823520.

The previous prime is 22120022201989. The next prime is 22120022202077. The reversal of 22120022202021 is 12020222002122.

22120022202021 is a `hidden beast` number, since 221 + 20 + 0 + 2 + 220 + 202 + 1 = 666.

It is not a de Polignac number, because 22120022202021 - 2⁵ = 22120022201989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120022201985 and 22120022202003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120022202121) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 384841330 + ... + 384898803.

Almost surely, 2^{22120022202021} is an apocalyptic number.

It is an amenable number.

22120022202021 is a deficient number, since it is larger than the sum of its proper divisors (11182014955355).

22120022202021 is a wasteful number, since it uses less digits than its factorization.

22120022202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769740273 (or 769740270 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22120022202021 its reverse (12020222002122), we get a palindrome (34140244204143).

The spelling of 22120022202021 in words is "twenty-two trillion, one hundred twenty billion, twenty-two million, two hundred two thousand, twenty-one".