2125220262 has 64 divisors (see below), whose sum is σ = 4895735040. Its totient is φ = 608256000.

The previous prime is 2125220249. The next prime is 2125220299. The reversal of 2125220262 is 2620225212.

It is a happy number.

It is a super-2 number, since 2×2125220262² = 9033122324030697288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440262 + ... + 445062.

It is an arithmetic number, because the mean of its divisors is an integer number (76495860).

Almost surely, 2^2125220262 is an apocalyptic number.

2125220262 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125220262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2447867520).

2125220262 is an abundant number, since it is smaller than the sum of its proper divisors (2770514778).

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

2125220262 is a wasteful number, since it uses less digits than its factorization.

2125220262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2125220262 is about 46100.1113013841. Note that the first 3 decimals coincide. The cubic root of 2125220262 is about 1285.6852138435.

Adding to 2125220262 its reverse (2620225212), we get a palindrome (4745445474).

It can be divided in two parts, 21252 and 20262, that added together give a palindrome (41514).

The spelling of 2125220262 in words is "two billion, one hundred twenty-five million, two hundred twenty thousand, two hundred sixty-two".