1221042024127 has 2 divisors, whose sum is σ = 1221042024128. Its totient is φ = 1221042024126.

The previous prime is 1221042024067. The next prime is 1221042024151. The reversal of 1221042024127 is 7214202401221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1221042024127 - 2²⁷ = 1220907806399 is a prime.

It is a super-2 number, since 2×1221042024127² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1221042024095 and 1221042024104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1221042028127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610521012063 + 610521012064.

It is an arithmetic number, because the mean of its divisors is an integer number (610521012064).

Almost surely, 2^{1221042024127} is an apocalyptic number.

1221042024127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221042024127 is an equidigital number, since it uses as much as digits as its factorization.

1221042024127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

Adding to 1221042024127 its reverse (7214202401221), we get a palindrome (8435244425348).

The spelling of 1221042024127 in words is "one trillion, two hundred twenty-one billion, forty-two million, twenty-four thousand, one hundred twenty-seven".