121020012220127 has 2 divisors, whose sum is σ = 121020012220128. Its totient is φ = 121020012220126.

The previous prime is 121020012220103. The next prime is 121020012220139. The reversal of 121020012220127 is 721022210020121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121020012220127 - 2¹² = 121020012216031 is a prime.

It is a super-2 number, since 2×121020012220127² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020012220157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510006110063 + 60510006110064.

It is an arithmetic number, because the mean of its divisors is an integer number (60510006110064).

Almost surely, 2^{121020012220127} is an apocalyptic number.

121020012220127 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020012220127 is an equidigital number, since it uses as much as digits as its factorization.

121020012220127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 121020012220127 its reverse (721022210020121), we get a palindrome (842042222240248).

The spelling of 121020012220127 in words is "one hundred twenty-one trillion, twenty billion, twelve million, two hundred twenty thousand, one hundred twenty-seven".