2051221314 has 16 divisors (see below), whose sum is σ = 4129977600. Its totient is φ = 679151280.

The previous prime is 2051221307. The next prime is 2051221331. The reversal of 2051221314 is 4131221502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146322 + ... + 1148109.

It is an arithmetic number, because the mean of its divisors is an integer number (258123600).

Almost surely, 2^2051221314 is an apocalyptic number.

2051221314 is an abundant number, since it is smaller than the sum of its proper divisors (2078756286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2051221314 is a wasteful number, since it uses less digits than its factorization.

2051221314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294585.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2051221314 is about 45290.4108393819. The cubic root of 2051221314 is about 1270.5863153432.

Adding to 2051221314 its reverse (4131221502), we get a palindrome (6182442816).

The spelling of 2051221314 in words is "two billion, fifty-one million, two hundred twenty-one thousand, three hundred fourteen".