20022121101019 has 4 divisors (see below), whose sum is σ = 20029188566296. Its totient is φ = 20015053635744.

The previous prime is 20022121101001. The next prime is 20022121101049. The reversal of 20022121101019 is 91010112122002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022121101019 is a prime.

It is a super-2 number, since 2×20022121101019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022121101049) 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, 3533728389 + ... + 3533734054.

It is an arithmetic number, because the mean of its divisors is an integer number (5007297141574).

Almost surely, 2^{20022121101019} is an apocalyptic number.

20022121101019 is a deficient number, since it is larger than the sum of its proper divisors (7067465277).

20022121101019 is an equidigital number, since it uses as much as digits as its factorization.

20022121101019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7067465276.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 20022121101019 in words is "twenty trillion, twenty-two billion, one hundred twenty-one million, one hundred one thousand, nineteen".