981211100112002 has 8 divisors (see below), whose sum is σ = 1511595478551036. Its totient is φ = 477345940594992.

The previous prime is 981211100111999. The next prime is 981211100112007. The reversal of 981211100112002 is 200211001112189.

It can be written as a sum of positive squares in 2 ways, for example, as 980627909770441 + 583190341561 = 31314979^2 + 763669^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×981211100112002² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (981211100112007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6629804730413 + ... + 6629804730560.

Almost surely, 2^{981211100112002} is an apocalyptic number.

981211100112002 is a deficient number, since it is larger than the sum of its proper divisors (530384378439034).

981211100112002 is a wasteful number, since it uses less digits than its factorization.

981211100112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13259609461012.

The product of its (nonzero) digits is 576, while the sum is 29.

The spelling of 981211100112002 in words is "nine hundred eighty-one trillion, two hundred eleven billion, one hundred million, one hundred twelve thousand, two".