22220699 has 4 divisors (see below), whose sum is σ = 22986960. Its totient is φ = 21454440.

The previous prime is 22220651. The next prime is 22220713. The reversal of 22220699 is 99602222.

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

It is a cyclic number.

It is not a de Polignac number, because 22220699 - 2¹⁶ = 22155163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220629) 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, 383087 + ... + 383144.

It is an arithmetic number, because the mean of its divisors is an integer number (5746740).

Almost surely, 2^22220699 is an apocalyptic number.

22220699 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

22220699 is a deficient number, since it is larger than the sum of its proper divisors (766261).

22220699 is an equidigital number, since it uses as much as digits as its factorization.

22220699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766260.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 22220699 is about 4713.8836430273. The cubic root of 22220699 is about 281.1377979436.

The spelling of 22220699 in words is "twenty-two million, two hundred twenty thousand, six hundred ninety-nine".