10121421255 has 32 divisors (see below), whose sum is σ = 17678304000. Its totient is φ = 4904071680.

The previous prime is 10121421203. The next prime is 10121421347. The reversal of 10121421255 is 55212412101.

It is a happy number.

It is not a de Polignac number, because 10121421255 - 2¹¹ = 10121419207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236496 + ... + 275994.

It is an arithmetic number, because the mean of its divisors is an integer number (552447000).

Almost surely, 2^10121421255 is an apocalyptic number.

10121421255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10121421255 is a deficient number, since it is larger than the sum of its proper divisors (7556882745).

10121421255 is a wasteful number, since it uses less digits than its factorization.

10121421255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41071.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 10121421255 its reverse (55212412101), we get a palindrome (65333833356).

The spelling of 10121421255 in words is "ten billion, one hundred twenty-one million, four hundred twenty-one thousand, two hundred fifty-five".