10555212012421 has 8 divisors (see below), whose sum is σ = 10568169057600. Its totient is φ = 10542260267232.

The previous prime is 10555212012413. The next prime is 10555212012559. The reversal of 10555212012421 is 12421021255501.

10555212012421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10555212012421 - 2³ = 10555212012413 is a prime.

It is a super-2 number, since 2×10555212012421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10555212072421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2667930 + ... + 5313028.

It is an arithmetic number, because the mean of its divisors is an integer number (1321021132200).

Almost surely, 2^{10555212012421} is an apocalyptic number.

It is an amenable number.

10555212012421 is a deficient number, since it is larger than the sum of its proper divisors (12957045179).

10555212012421 is a wasteful number, since it uses less digits than its factorization.

10555212012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649995.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 10555212012421 its reverse (12421021255501), we get a palindrome (22976233267922).

The spelling of 10555212012421 in words is "ten trillion, five hundred fifty-five billion, two hundred twelve million, twelve thousand, four hundred twenty-one".