1211040302241 has 96 divisors (see below), whose sum is σ = 2076553082880. Its totient is φ = 620697168000.

The previous prime is 1211040302233. The next prime is 1211040302257. The reversal of 1211040302241 is 1422030401121.

It is not a de Polignac number, because 1211040302241 - 2³ = 1211040302233 is a prime.

It is a super-2 number, since 2×1211040302241² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1211040302281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 242836950 + ... + 242841936.

It is an arithmetic number, because the mean of its divisors is an integer number (21630761280).

Almost surely, 2^{1211040302241} is an apocalyptic number.

1211040302241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1211040302241 is a deficient number, since it is larger than the sum of its proper divisors (865512780639).

1211040302241 is a wasteful number, since it uses less digits than its factorization.

1211040302241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6995 (or 6988 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1211040302241 its reverse (1422030401121), we get a palindrome (2633070703362).

The spelling of 1211040302241 in words is "one trillion, two hundred eleven billion, forty million, three hundred two thousand, two hundred forty-one".