212224153 has 2 divisors, whose sum is σ = 212224154. Its totient is φ = 212224152.

The previous prime is 212224139. The next prime is 212224157. The reversal of 212224153 is 351422212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211208089 + 1016064 = 14533^2 + 1008^2 .

It is a cyclic number.

It is not a de Polignac number, because 212224153 - 2¹⁷ = 212093081 is a prime.

It is a super-2 number, since 2×212224153² = 90078182233134818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212224157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106112076 + 106112077.

It is an arithmetic number, because the mean of its divisors is an integer number (106112077).

Almost surely, 2^212224153 is an apocalyptic number.

It is an amenable number.

212224153 is a deficient number, since it is larger than the sum of its proper divisors (1).

212224153 is an equidigital number, since it uses as much as digits as its factorization.

212224153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 212224153 is about 14567.9151905824. The cubic root of 212224153 is about 596.4832733643.

Adding to 212224153 its reverse (351422212), we get a palindrome (563646365).

The spelling of 212224153 in words is "two hundred twelve million, two hundred twenty-four thousand, one hundred fifty-three".