10450155452221 has 4 divisors (see below), whose sum is σ = 10450162645852. Its totient is φ = 10450148258592.

The previous prime is 10450155452207. The next prime is 10450155452257. The reversal of 10450155452221 is 12225455105401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6505407324900 + 3944748127321 = 2550570^2 + 1986139^2 .

It is a cyclic number.

It is not a de Polignac number, because 10450155452221 - 2¹⁵ = 10450155419453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10450155450221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567090 + ... + 4606723.

It is an arithmetic number, because the mean of its divisors is an integer number (2612540661463).

Almost surely, 2^{10450155452221} is an apocalyptic number.

It is an amenable number.

10450155452221 is a deficient number, since it is larger than the sum of its proper divisors (7193631).

10450155452221 is an equidigital number, since it uses as much as digits as its factorization.

10450155452221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7193630.

The product of its (nonzero) digits is 80000, while the sum is 37.

The spelling of 10450155452221 in words is "ten trillion, four hundred fifty billion, one hundred fifty-five million, four hundred fifty-two thousand, two hundred twenty-one".