20012122221002 has 8 divisors (see below), whose sum is σ = 30018407311776. Its totient is φ = 10005986450412.

The previous prime is 20012122220989. The next prime is 20012122221019. The reversal of 20012122221002 is 20012222121002.

It is a happy number.

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, 36994388 + ... + 37531439.

It is an arithmetic number, because the mean of its divisors is an integer number (3752300913972).

Almost surely, 2^{20012122221002} is an apocalyptic number.

20012122221002 is a deficient number, since it is larger than the sum of its proper divisors (10006285090774).

20012122221002 is a wasteful number, since it uses less digits than its factorization.

20012122221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74660092.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20012122221002 its reverse (20012222121002), we get a palindrome (40024344342004).

The spelling of 20012122221002 in words is "twenty trillion, twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, two".