20211098 has 8 divisors (see below), whose sum is σ = 31912320. Its totient is φ = 9573660.

The previous prime is 20211097. The next prime is 20211109. The reversal of 20211098 is 89011202.

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

It is not an unprimeable number, because it can be changed into a prime (20211097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265898 + ... + 265973.

It is an arithmetic number, because the mean of its divisors is an integer number (3989040).

Almost surely, 2^20211098 is an apocalyptic number.

20211098 is a deficient number, since it is larger than the sum of its proper divisors (11701222).

20211098 is a wasteful number, since it uses less digits than its factorization.

20211098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531892.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 20211098 is about 4495.6754776118. The cubic root of 20211098 is about 272.3934347504.

The spelling of 20211098 in words is "twenty million, two hundred eleven thousand, ninety-eight".