12122221020002 has 32 divisors (see below), whose sum is σ = 19917113255424. Its totient is φ = 5508580665600.

The previous prime is 12122221019999. The next prime is 12122221020023. The reversal of 12122221020002 is 20002012222121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11988248 + ... + 12960035.

It is an arithmetic number, because the mean of its divisors is an integer number (622409789232).

Almost surely, 2^{12122221020002} is an apocalyptic number.

12122221020002 is a deficient number, since it is larger than the sum of its proper divisors (7794892235422).

12122221020002 is a wasteful number, since it uses less digits than its factorization.

12122221020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24948794.

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

Adding to 12122221020002 its reverse (20002012222121), we get a palindrome (32124233242123).

The spelling of 12122221020002 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-one million, twenty thousand, two".