21212002110998 has 8 divisors (see below), whose sum is σ = 32146023817992. Its totient is φ = 10496660838336.

The previous prime is 21212002110983. The next prime is 21212002111007. The reversal of 21212002110998 is 89901120021212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54670108340 + ... + 54670108727.

It is an arithmetic number, because the mean of its divisors is an integer number (4018252977249).

Almost surely, 2^{21212002110998} is an apocalyptic number.

21212002110998 is a deficient number, since it is larger than the sum of its proper divisors (10934021706994).

21212002110998 is a wasteful number, since it uses less digits than its factorization.

21212002110998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109340217166.

The product of its (nonzero) digits is 10368, while the sum is 38.

The spelling of 21212002110998 in words is "twenty-one trillion, two hundred twelve billion, two million, one hundred ten thousand, nine hundred ninety-eight".