2134221401 has 12 divisors (see below), whose sum is σ = 2312438508. Its totient is φ = 1968842304.

The previous prime is 2134221377. The next prime is 2134221431. The reversal of 2134221401 is 1041224312.

It can be written as a sum of positive squares in 6 ways, for example, as 722265625 + 1411955776 = 26875^2 + 37576^2 .

It is not a de Polignac number, because 2134221401 - 2¹⁸ = 2133959257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2134221431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391571 + ... + 396983.

It is an arithmetic number, because the mean of its divisors is an integer number (192703209).

Almost surely, 2^2134221401 is an apocalyptic number.

It is an amenable number.

2134221401 is a deficient number, since it is larger than the sum of its proper divisors (178217107).

2134221401 is a wasteful number, since it uses less digits than its factorization.

2134221401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7772 (or 7759 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2134221401 is about 46197.6341493804. The cubic root of 2134221401 is about 1287.4977838401.

Adding to 2134221401 its reverse (1041224312), we get a palindrome (3175445713).

The spelling of 2134221401 in words is "two billion, one hundred thirty-four million, two hundred twenty-one thousand, four hundred one".