22155011 has 2 divisors, whose sum is σ = 22155012. Its totient is φ = 22155010.

The previous prime is 22154999. The next prime is 22155059. The reversal of 22155011 is 11055122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22155011 - 2¹⁸ = 21892867 is a prime.

It is not a weakly prime, because it can be changed into another prime (22155611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11077505 + 11077506.

It is an arithmetic number, because the mean of its divisors is an integer number (11077506).

Almost surely, 2^22155011 is an apocalyptic number.

22155011 is a deficient number, since it is larger than the sum of its proper divisors (1).

22155011 is an equidigital number, since it uses as much as digits as its factorization.

22155011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 22155011 is about 4706.9109827997. The cubic root of 22155011 is about 280.8604948287.

The spelling of 22155011 in words is "twenty-two million, one hundred fifty-five thousand, eleven".