1241222211 has 20 divisors (see below), whose sum is σ = 1889162352. Its totient is φ = 811865808.

The previous prime is 1241222197. The next prime is 1241222263. The reversal of 1241222211 is 1122221421.

It is not a de Polignac number, because 1241222211 - 2²² = 1237027907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1241222111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 140271 + ... + 148856.

Almost surely, 2^1241222211 is an apocalyptic number.

1241222211 is a deficient number, since it is larger than the sum of its proper divisors (647940141).

1241222211 is an equidigital number, since it uses as much as digits as its factorization.

1241222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289192 (or 289183 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 1241222211 is about 35230.9836791424. The cubic root of 1241222211 is about 1074.6899299707.

Adding to 1241222211 its reverse (1122221421), we get a palindrome (2363443632).

The spelling of 1241222211 in words is "one billion, two hundred forty-one million, two hundred twenty-two thousand, two hundred eleven".