111022121201 has 2 divisors, whose sum is σ = 111022121202. Its totient is φ = 111022121200.

The previous prime is 111022121131. The next prime is 111022121213. The reversal of 111022121201 is 102121220111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111021573601 + 547600 = 333199^2 + 740^2 .

It is an emirp because it is prime and its reverse (102121220111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111022121201 is a prime.

It is a super-2 number, since 2×111022121201² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111022121401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511060600 + 55511060601.

It is an arithmetic number, because the mean of its divisors is an integer number (55511060601).

Almost surely, 2^111022121201 is an apocalyptic number.

It is an amenable number.

111022121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022121201 is an equidigital number, since it uses as much as digits as its factorization.

111022121201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111022121201 its reverse (102121220111), we get a palindrome (213143341312).

The spelling of 111022121201 in words is "one hundred eleven billion, twenty-two million, one hundred twenty-one thousand, two hundred one".