10211998 has 4 divisors (see below), whose sum is σ = 15318000. Its totient is φ = 5105998.

The previous prime is 10211983. The next prime is 10212011. The reversal of 10211998 is 89911201.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552998 + ... + 2553001.

It is an arithmetic number, because the mean of its divisors is an integer number (3829500).

Almost surely, 2^10211998 is an apocalyptic number.

10211998 is a deficient number, since it is larger than the sum of its proper divisors (5106002).

10211998 is an equidigital number, since it uses as much as digits as its factorization.

10211998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106001.

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 10211998 is about 3195.6216922533. The cubic root of 10211998 is about 216.9552882035.

It can be divided in two parts, 102 and 11998, that added together give a square (12100 = 110²).

The spelling of 10211998 in words is "ten million, two hundred eleven thousand, nine hundred ninety-eight".