20022021002 has 8 divisors (see below), whose sum is σ = 30034582500. Its totient is φ = 10010493504.

The previous prime is 20022020989. The next prime is 20022021017. The reversal of 20022021002 is 20012022002.

It can be written as a sum of positive squares in 2 ways, for example, as 19977278281 + 44742721 = 141341^2 + 6689^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208127 + ... + 288722.

Almost surely, 2^20022021002 is an apocalyptic number.

20022021002 is a deficient number, since it is larger than the sum of its proper divisors (10012561498).

20022021002 is a wasteful number, since it uses less digits than its factorization.

20022021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517000.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20022021002 its reverse (20012022002), we get a palindrome (40034043004).

The spelling of 20022021002 in words is "twenty billion, twenty-two million, twenty-one thousand, two".