21110310022 has 4 divisors (see below), whose sum is σ = 31665465036. Its totient is φ = 10555155010.

The previous prime is 21110309989. The next prime is 21110310043. The reversal of 21110310022 is 22001301112.

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

It is a junction number, because it is equal to n+sod(n) for n = 21110309984 and 21110310011.

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, 5277577504 + ... + 5277577507.

It is an arithmetic number, because the mean of its divisors is an integer number (7916366259).

Almost surely, 2^21110310022 is an apocalyptic number.

21110310022 is a deficient number, since it is larger than the sum of its proper divisors (10555155014).

21110310022 is a wasteful number, since it uses less digits than its factorization.

21110310022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10555155013.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21110310022 its reverse (22001301112), we get a palindrome (43111611134).

The spelling of 21110310022 in words is "twenty-one billion, one hundred ten million, three hundred ten thousand, twenty-two".