2221901841 has 8 divisors (see below), whose sum is σ = 2966483584. Its totient is φ = 1479294000.

The previous prime is 2221901831. The next prime is 2221901879. The reversal of 2221901841 is 1481091222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221901841 - 2⁷ = 2221901713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221901799 and 2221901808.

It is not an unprimeable number, because it can be changed into a prime (2221901831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490846 + ... + 495351.

It is an arithmetic number, because the mean of its divisors is an integer number (370810448).

Almost surely, 2^2221901841 is an apocalyptic number.

It is an amenable number.

2221901841 is a deficient number, since it is larger than the sum of its proper divisors (744581743).

2221901841 is an equidigital number, since it uses as much as digits as its factorization.

2221901841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986951.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2221901841 is about 47137.0538005930. The cubic root of 2221901841 is about 1304.8931648716.

The spelling of 2221901841 in words is "two billion, two hundred twenty-one million, nine hundred one thousand, eight hundred forty-one".