22220221111157 has 2 divisors, whose sum is σ = 22220221111158. Its totient is φ = 22220221111156.

The previous prime is 22220221111111. The next prime is 22220221111243. The reversal of 22220221111157 is 75111112202222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18326738388676 + 3893482722481 = 4280974^2 + 1973191^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220221111157 - 2²⁰ = 22220220062581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220221311157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110110555578 + 11110110555579.

It is an arithmetic number, because the mean of its divisors is an integer number (11110110555579).

Almost surely, 2^{22220221111157} is an apocalyptic number.

It is an amenable number.

22220221111157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220221111157 is an equidigital number, since it uses as much as digits as its factorization.

22220221111157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 29.

Adding to 22220221111157 its reverse (75111112202222), we get a palindrome (97331333313379).

The spelling of 22220221111157 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, one hundred eleven thousand, one hundred fifty-seven".