121422031 has 2 divisors, whose sum is σ = 121422032. Its totient is φ = 121422030.

The previous prime is 121422029. The next prime is 121422061. The reversal of 121422031 is 130224121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121422031 - 2¹ = 121422029 is a prime.

It is a super-2 number, since 2×121422031² = 29486619224329922, which contains 22 as substring.

Together with 121422029, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 121421996 and 121422014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121422061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60711015 + 60711016.

It is an arithmetic number, because the mean of its divisors is an integer number (60711016).

Almost surely, 2^121422031 is an apocalyptic number.

121422031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121422031 is an equidigital number, since it uses as much as digits as its factorization.

121422031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121422031 is about 11019.1665292798. The cubic root of 121422031 is about 495.1831189987.

Adding to 121422031 its reverse (130224121), we get a palindrome (251646152).

The spelling of 121422031 in words is "one hundred twenty-one million, four hundred twenty-two thousand, thirty-one".