21220010011198 has 16 divisors (see below), whose sum is σ = 32008875172560. Its totient is φ = 10550388801600.

The previous prime is 21220010011181. The next prime is 21220010011247. The reversal of 21220010011198 is 89111001002212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10266688 + ... + 12159148.

It is an arithmetic number, because the mean of its divisors is an integer number (2000554698285).

Almost surely, 2^{21220010011198} is an apocalyptic number.

21220010011198 is a deficient number, since it is larger than the sum of its proper divisors (10788865161362).

21220010011198 is a wasteful number, since it uses less digits than its factorization.

21220010011198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923963.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 21220010011198 in words is "twenty-one trillion, two hundred twenty billion, ten million, eleven thousand, one hundred ninety-eight".