2511221034 has 32 divisors (see below), whose sum is σ = 5741438976. Its totient is φ = 717303600.

The previous prime is 2511221021. The next prime is 2511221077. The reversal of 2511221034 is 4301221152.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2511221034.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270579 + ... + 279705.

It is an arithmetic number, because the mean of its divisors is an integer number (179419968).

Almost surely, 2^2511221034 is an apocalyptic number.

2511221034 is an abundant number, since it is smaller than the sum of its proper divisors (3230217942).

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

2511221034 is a wasteful number, since it uses less digits than its factorization.

2511221034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15690.

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

The square root of 2511221034 is about 50112.0847101774. The cubic root of 2511221034 is about 1359.2363493265.

Adding to 2511221034 its reverse (4301221152), we get a palindrome (6812442186).

The spelling of 2511221034 in words is "two billion, five hundred eleven million, two hundred twenty-one thousand, thirty-four".