21223301099 has 64 divisors (see below), whose sum is σ = 28976640000. Its totient is φ = 15009546240.

The previous prime is 21223301087. The next prime is 21223301111. The reversal of 21223301099 is 99010332212.

It is an interprime number because it is at equal distance from previous prime (21223301087) and next prime (21223301111).

It is not a de Polignac number, because 21223301099 - 2⁸ = 21223300843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21223301009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27598187 + ... + 27598955.

It is an arithmetic number, because the mean of its divisors is an integer number (452760000).

Almost surely, 2^21223301099 is an apocalyptic number.

21223301099 is a deficient number, since it is larger than the sum of its proper divisors (7753338901).

21223301099 is a wasteful number, since it uses less digits than its factorization.

21223301099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 21223301099 in words is "twenty-one billion, two hundred twenty-three million, three hundred one thousand, ninety-nine".