21210012212098 has 16 divisors (see below), whose sum is σ = 32065849221120. Its totient is φ = 10521397466496.

The previous prime is 21210012212093. The next prime is 21210012212099. The reversal of 21210012212098 is 89021221001212.

It is not an unprimeable number, because it can be changed into a prime (21210012212093) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29367058 + ... + 30080626.

It is an arithmetic number, because the mean of its divisors is an integer number (2004115576320).

Almost surely, 2^{21210012212098} is an apocalyptic number.

21210012212098 is a deficient number, since it is larger than the sum of its proper divisors (10855837009022).

21210012212098 is a wasteful number, since it uses less digits than its factorization.

21210012212098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830721.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 21210012212098 in words is "twenty-one trillion, two hundred ten billion, twelve million, two hundred twelve thousand, ninety-eight".