121424443442254 has 4 divisors (see below), whose sum is σ = 182136665163384. Its totient is φ = 60712221721126.

The previous prime is 121424443442219. The next prime is 121424443442273. The reversal of 121424443442254 is 452244344424121.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×121424443442254² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30356110860562 + ... + 30356110860565.

It is an arithmetic number, because the mean of its divisors is an integer number (45534166290846).

Almost surely, 2^{121424443442254} is an apocalyptic number.

121424443442254 is a deficient number, since it is larger than the sum of its proper divisors (60712221721130).

121424443442254 is an equidigital number, since it uses as much as digits as its factorization.

121424443442254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60712221721129.

The product of its digits is 3932160, while the sum is 46.

Adding to 121424443442254 its reverse (452244344424121), we get a palindrome (573668787866375).

The spelling of 121424443442254 in words is "one hundred twenty-one trillion, four hundred twenty-four billion, four hundred forty-three million, four hundred forty-two thousand, two hundred fifty-four".