211121211111002 has 64 divisors (see below), whose sum is σ = 333241255526400. Its totient is φ = 100188284011200.

The previous prime is 211121211110989. The next prime is 211121211111011. The reversal of 211121211111002 is 200111112121112.

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, 4356313823 + ... + 4356362285.

It is an arithmetic number, because the mean of its divisors is an integer number (5206894617600).

Almost surely, 2^{211121211111002} is an apocalyptic number.

211121211111002 is a deficient number, since it is larger than the sum of its proper divisors (122120044415398).

211121211111002 is a wasteful number, since it uses less digits than its factorization.

211121211111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53739.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 211121211111002 its reverse (200111112121112), we get a palindrome (411232323232114).

The spelling of 211121211111002 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred eleven million, one hundred eleven thousand, two".