20021222002 has 16 divisors (see below), whose sum is σ = 30766218912. Its totient is φ = 9766360800.

The previous prime is 20021221991. The next prime is 20021222017. The reversal of 20021222002 is 20022212002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62124 + ... + 209527.

It is an arithmetic number, because the mean of its divisors is an integer number (1922888682).

Almost surely, 2^20021222002 is an apocalyptic number.

20021222002 is a deficient number, since it is larger than the sum of its proper divisors (10744996910).

20021222002 is a wasteful number, since it uses less digits than its factorization.

20021222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272553.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20021222002 its reverse (20022212002), we get a palindrome (40043434004).

The spelling of 20021222002 in words is "twenty billion, twenty-one million, two hundred twenty-two thousand, two".