21210231119 has 16 divisors (see below), whose sum is σ = 26458780416. Its totient is φ = 16518168000.

The previous prime is 21210231089. The next prime is 21210231121. The reversal of 21210231119 is 91113201212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21210231119 is a prime.

It is a super-2 number, since 2×21210231119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21210231094 and 21210231103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210201119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62204 + ... + 215150.

It is an arithmetic number, because the mean of its divisors is an integer number (1653673776).

Almost surely, 2^21210231119 is an apocalyptic number.

21210231119 is a deficient number, since it is larger than the sum of its proper divisors (5248549297).

21210231119 is a wasteful number, since it uses less digits than its factorization.

21210231119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154766.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 21210231119 in words is "twenty-one billion, two hundred ten million, two hundred thirty-one thousand, one hundred nineteen".