212120011001002 has 64 divisors (see below), whose sum is σ = 346268906290944. Its totient is φ = 96870728448000.

The previous prime is 212120011000979. The next prime is 212120011001033. The reversal of 212120011001002 is 200100110021212.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20520456378 + ... + 20520466714.

It is an arithmetic number, because the mean of its divisors is an integer number (5410451660796).

Almost surely, 2^{212120011001002} is an apocalyptic number.

212120011001002 is a deficient number, since it is larger than the sum of its proper divisors (134148895289942).

212120011001002 is a wasteful number, since it uses less digits than its factorization.

212120011001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16063.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212120011001002 its reverse (200100110021212), we get a palindrome (412220121022214).

The spelling of 212120011001002 in words is "two hundred twelve trillion, one hundred twenty billion, eleven million, one thousand, two".