50042212226621 has 4 divisors (see below), whose sum is σ = 50043113278044. Its totient is φ = 50041311175200.

The previous prime is 50042212226533. The next prime is 50042212226623. The reversal of 50042212226621 is 12662221224005.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10119149085721 + 39923063140900 = 3181061^2 + 6318470^2 .

It is a cyclic number.

It is not a de Polignac number, because 50042212226621 - 2³⁰ = 50041138484797 is a prime.

It is a super-2 number, since 2×50042212226621² (a number of 28 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 (50042212226623) 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, 450442400 + ... + 450553481.

It is an arithmetic number, because the mean of its divisors is an integer number (12510778319511).

Almost surely, 2^{50042212226621} is an apocalyptic number.

It is an amenable number.

50042212226621 is a deficient number, since it is larger than the sum of its proper divisors (901051423).

50042212226621 is an equidigital number, since it uses as much as digits as its factorization.

50042212226621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901051422.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 50042212226621 in words is "fifty trillion, forty-two billion, two hundred twelve million, two hundred twenty-six thousand, six hundred twenty-one".