20021202019 has 12 divisors (see below), whose sum is σ = 24776873616. Its totient is φ = 15840950112.

The previous prime is 20021201939. The next prime is 20021202059. The reversal of 20021202019 is 91020212002.

It is not a de Polignac number, because 20021202019 - 2¹¹ = 20021199971 is a prime.

It is a super-2 number, since 2×20021202019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20021201987 and 20021202005.

It is not an unprimeable number, because it can be changed into a prime (20021202059) 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 11 ways as a sum of consecutive naturals, for example, 8460864 + ... + 8463229.

It is an arithmetic number, because the mean of its divisors is an integer number (2064739468).

Almost surely, 2^20021202019 is an apocalyptic number.

20021202019 is a deficient number, since it is larger than the sum of its proper divisors (4755671597).

20021202019 is a wasteful number, since it uses less digits than its factorization.

20021202019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16924126 (or 16924113 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

It can be divided in two parts, 2002 and 1202019, that added together give a palindrome (1204021).

The spelling of 20021202019 in words is "twenty billion, twenty-one million, two hundred two thousand, nineteen".