121442422241 has 16 divisors (see below), whose sum is σ = 141965199360. Its totient is φ = 101734850880.

The previous prime is 121442422217. The next prime is 121442422243. The reversal of 121442422241 is 142224244121.

It is a cyclic number.

It is not a de Polignac number, because 121442422241 - 2¹⁴ = 121442405857 is a prime.

It is a super-2 number, since 2×121442422241² (a number of 23 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 (121442422243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838721 + ... + 972798.

It is an arithmetic number, because the mean of its divisors is an integer number (8872824960).

Almost surely, 2^121442422241 is an apocalyptic number.

It is an amenable number.

121442422241 is a deficient number, since it is larger than the sum of its proper divisors (20522777119).

121442422241 is a wasteful number, since it uses less digits than its factorization.

121442422241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811744.

The product of its digits is 8192, while the sum is 29.

Adding to 121442422241 its reverse (142224244121), we get a palindrome (263666666362).

The spelling of 121442422241 in words is "one hundred twenty-one billion, four hundred forty-two million, four hundred twenty-two thousand, two hundred forty-one".