1241022221 has 8 divisors (see below), whose sum is σ = 1306768320. Its totient is φ = 1175319072.

The previous prime is 1241022203. The next prime is 1241022227. The reversal of 1241022221 is 1222201421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1241022221 - 2⁶ = 1241022157 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1241022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241022227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60896 + ... + 78678.

It is an arithmetic number, because the mean of its divisors is an integer number (163346040).

Almost surely, 2^1241022221 is an apocalyptic number.

It is an amenable number.

1241022221 is a deficient number, since it is larger than the sum of its proper divisors (65746099).

1241022221 is a wasteful number, since it uses less digits than its factorization.

1241022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21475.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1241022221 is about 35228.1452960555. The cubic root of 1241022221 is about 1074.6322076221.

Adding to 1241022221 its reverse (1222201421), we get a palindrome (2463223642).

The spelling of 1241022221 in words is "one billion, two hundred forty-one million, twenty-two thousand, two hundred twenty-one".