12212122222002 has 32 divisors (see below), whose sum is σ = 25902743457600. Its totient is φ = 3825064585728.

The previous prime is 12212122221961. The next prime is 12212122222007. The reversal of 12212122222002 is 20022222121221.

It is a self number, because there is not a number n which added to its sum of digits gives 12212122222002.

It is not an unprimeable number, because it can be changed into a prime (12212122222007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96646627 + ... + 96772902.

It is an arithmetic number, because the mean of its divisors is an integer number (809460733050).

Almost surely, 2^{12212122222002} is an apocalyptic number.

12212122222002 is an abundant number, since it is smaller than the sum of its proper divisors (13690621235598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212122222002 is a wasteful number, since it uses less digits than its factorization.

12212122222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193420170.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12212122222002 its reverse (20022222121221), we get a palindrome (32234344343223).

The spelling of 12212122222002 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, two".