22121212001002 has 16 divisors (see below), whose sum is σ = 33991261920000. Its totient is φ = 10790793444960.

The previous prime is 22121212000991. The next prime is 22121212001011. The reversal of 22121212001002 is 20010021212122.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39120199 + ... + 39681637.

It is an arithmetic number, because the mean of its divisors is an integer number (2124453870000).

Almost surely, 2^{22121212001002} is an apocalyptic number.

22121212001002 is a deficient number, since it is larger than the sum of its proper divisors (11870049918998).

22121212001002 is a wasteful number, since it uses less digits than its factorization.

22121212001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041981.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22121212001002 its reverse (20010021212122), we get a palindrome (42131233213124).

The spelling of 22121212001002 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred twelve million, one thousand, two".