4891022101 has 4 divisors (see below), whose sum is σ = 5589739552. Its totient is φ = 4192304652.

The previous prime is 4891022069. The next prime is 4891022113. The reversal of 4891022101 is 1012201984.

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 4891022101 - 2⁵ = 4891022069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4891022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891025101) 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, 349358715 + ... + 349358728.

It is an arithmetic number, because the mean of its divisors is an integer number (1397434888).

Almost surely, 2^4891022101 is an apocalyptic number.

It is an amenable number.

4891022101 is a deficient number, since it is larger than the sum of its proper divisors (698717451).

4891022101 is an equidigital number, since it uses as much as digits as its factorization.

4891022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698717450.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 4891022101 is about 69935.8427489081. The cubic root of 4891022101 is about 1697.4612741875.

The spelling of 4891022101 in words is "four billion, eight hundred ninety-one million, twenty-two thousand, one hundred one".