2254213451021 has 4 divisors (see below), whose sum is σ = 2576243944032. Its totient is φ = 1932182958012.

The previous prime is 2254213450969. The next prime is 2254213451033. The reversal of 2254213451021 is 1201543124522.

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 2254213451021 - 2¹⁰ = 2254213449997 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 (2254213451221) 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, 161015246495 + ... + 161015246508.

It is an arithmetic number, because the mean of its divisors is an integer number (644060986008).

Almost surely, 2^{2254213451021} is an apocalyptic number.

It is an amenable number.

2254213451021 is a deficient number, since it is larger than the sum of its proper divisors (322030493011).

2254213451021 is an equidigital number, since it uses as much as digits as its factorization.

2254213451021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322030493010.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 2254213451021 its reverse (1201543124522), we get a palindrome (3455756575543).

The spelling of 2254213451021 in words is "two trillion, two hundred fifty-four billion, two hundred thirteen million, four hundred fifty-one thousand, twenty-one".