22220070 has 32 divisors (see below), whose sum is σ = 55648512. Its totient is φ = 5667552.

The previous prime is 22220057. The next prime is 22220083. The reversal of 22220070 is 7002222.

It is an interprime number because it is at equal distance from previous prime (22220057) and next prime (22220083).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15412 + ... + 16791.

It is an arithmetic number, because the mean of its divisors is an integer number (1739016).

Almost surely, 2^22220070 is an apocalyptic number.

22220070 is an abundant number, since it is smaller than the sum of its proper divisors (33428442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22220070 is a wasteful number, since it uses less digits than its factorization.

22220070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32236.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 22220070 is about 4713.8169247437. The cubic root of 22220070 is about 281.1351452016.

Adding to 22220070 its reverse (7002222), we get a palindrome (29222292).

The spelling of 22220070 in words is "twenty-two million, two hundred twenty thousand, seventy".