2801022621 has 4 divisors (see below), whose sum is σ = 3734696832. Its totient is φ = 1867348412.

The previous prime is 2801022611. The next prime is 2801022641. The reversal of 2801022621 is 1262201082.

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 2801022621 - 2⁶ = 2801022557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2801022591 and 2801022600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801022611) 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, 466837101 + ... + 466837106.

It is an arithmetic number, because the mean of its divisors is an integer number (933674208).

Almost surely, 2^2801022621 is an apocalyptic number.

It is an amenable number.

2801022621 is a deficient number, since it is larger than the sum of its proper divisors (933674211).

2801022621 is an equidigital number, since it uses as much as digits as its factorization.

2801022621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933674210.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2801022621 is about 52924.6881993650. The cubic root of 2801022621 is about 1409.6313139964.

The spelling of 2801022621 in words is "two billion, eight hundred one million, twenty-two thousand, six hundred twenty-one".