2144135550021 has 4 divisors (see below), whose sum is σ = 2858847400032. Its totient is φ = 1429423700012.

The previous prime is 2144135550019. The next prime is 2144135550071. The reversal of 2144135550021 is 1200555314412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2144135550021 - 2¹ = 2144135550019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144135550071) 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, 357355925001 + ... + 357355925006.

It is an arithmetic number, because the mean of its divisors is an integer number (714711850008).

Almost surely, 2^{2144135550021} is an apocalyptic number.

It is an amenable number.

2144135550021 is a deficient number, since it is larger than the sum of its proper divisors (714711850011).

2144135550021 is an equidigital number, since it uses as much as digits as its factorization.

2144135550021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714711850010.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 2144135550021 in words is "two trillion, one hundred forty-four billion, one hundred thirty-five million, five hundred fifty thousand, twenty-one".