1222011541 has 16 divisors (see below), whose sum is σ = 1278662400. Its totient is φ = 1166413248.

The previous prime is 1222011523. The next prime is 1222011559. The reversal of 1222011541 is 1451102221.

It is an interprime number because it is at equal distance from previous prime (1222011523) and next prime (1222011559).

It is a cyclic number.

It is not a de Polignac number, because 1222011541 - 2²³ = 1213622933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222011521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1087606 + ... + 1088728.

It is an arithmetic number, because the mean of its divisors is an integer number (79916400).

Almost surely, 2^1222011541 is an apocalyptic number.

It is an amenable number.

1222011541 is a deficient number, since it is larger than the sum of its proper divisors (56650859).

1222011541 is a wasteful number, since it uses less digits than its factorization.

1222011541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1222011541 is about 34957.2816591908. The cubic root of 1222011541 is about 1069.1166730818.

Adding to 1222011541 its reverse (1451102221), we get a palindrome (2673113762).

The spelling of 1222011541 in words is "one billion, two hundred twenty-two million, eleven thousand, five hundred forty-one".