22120021101021 has 8 divisors (see below), whose sum is σ = 30212711747904. Its totient is φ = 14387005594080.

The previous prime is 22120021101007. The next prime is 22120021101023. The reversal of 22120021101021 is 12010112002122.

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

It is not a de Polignac number, because 22120021101021 - 2⁷ = 22120021100893 is a prime.

It is a super-2 number, since 2×22120021101021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120021101023) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 89918784841 + ... + 89918785086.

It is an arithmetic number, because the mean of its divisors is an integer number (3776588968488).

Almost surely, 2^{22120021101021} is an apocalyptic number.

It is an amenable number.

22120021101021 is a deficient number, since it is larger than the sum of its proper divisors (8092690646883).

22120021101021 is a wasteful number, since it uses less digits than its factorization.

22120021101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179837569971.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22120021101021 its reverse (12010112002122), we get a palindrome (34130133103143).

The spelling of 22120021101021 in words is "twenty-two trillion, one hundred twenty billion, twenty-one million, one hundred one thousand, twenty-one".