1121210064641 has 4 divisors (see below), whose sum is σ = 1121357774784. Its totient is φ = 1121062354500.

The previous prime is 1121210064599. The next prime is 1121210064671. The reversal of 1121210064641 is 1464600121211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121210064641 is a prime.

It is a super-2 number, since 2×1121210064641² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121210064671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73843685 + ... + 73858866.

It is an arithmetic number, because the mean of its divisors is an integer number (280339443696).

Almost surely, 2^{1121210064641} is an apocalyptic number.

It is an amenable number.

1121210064641 is a deficient number, since it is larger than the sum of its proper divisors (147710143).

1121210064641 is an equidigital number, since it uses as much as digits as its factorization.

1121210064641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147710142.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 1121210064641 its reverse (1464600121211), we get a palindrome (2585810185852).

The spelling of 1121210064641 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, sixty-four thousand, six hundred forty-one".