11221111037 has 2 divisors, whose sum is σ = 11221111038. Its totient is φ = 11221111036.

The previous prime is 11221111003. The next prime is 11221111061. The reversal of 11221111037 is 73011112211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7072978201 + 4148132836 = 84101^2 + 64406^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221111037 - 2⁶ = 11221110973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221111337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610555518 + 5610555519.

It is an arithmetic number, because the mean of its divisors is an integer number (5610555519).

Almost surely, 2^11221111037 is an apocalyptic number.

It is an amenable number.

11221111037 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221111037 is an equidigital number, since it uses as much as digits as its factorization.

11221111037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 11221111037 its reverse (73011112211), we get a palindrome (84232223248).

The spelling of 11221111037 in words is "eleven billion, two hundred twenty-one million, one hundred eleven thousand, thirty-seven".