20022101221019 has 12 divisors (see below), whose sum is σ = 20568719377896. Its totient is φ = 19485633754752.

The previous prime is 20022101221013. The next prime is 20022101221027. The reversal of 20022101221019 is 91012210122002.

It is a de Polignac number, because none of the positive numbers 2^k-20022101221019 is a prime.

It is a super-4 number, since 4×20022101221019⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022101220985 and 20022101221003.

It is not an unprimeable number, because it can be changed into a prime (20022101221013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21227894 + ... + 22151019.

It is an arithmetic number, because the mean of its divisors is an integer number (1714059948158).

Almost surely, 2^{20022101221019} is an apocalyptic number.

20022101221019 is a deficient number, since it is larger than the sum of its proper divisors (546618156877).

20022101221019 is an frugal number, since it uses more digits than its factorization.

20022101221019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43379146 (or 43379063 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 20022101221019 in words is "twenty trillion, twenty-two billion, one hundred one million, two hundred twenty-one thousand, nineteen".