2261011651252 has 24 divisors (see below), whose sum is σ = 4016336658656. Its totient is φ = 1113491177568.

The previous prime is 2261011651231. The next prime is 2261011651267. The reversal of 2261011651252 is 2521561101622.

It is a super-2 number, since 2×2261011651252² (a number of 26 digits) 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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1594303 + ... + 2657785.

Almost surely, 2^{2261011651252} is an apocalyptic number.

It is an amenable number.

2261011651252 is a deficient number, since it is larger than the sum of its proper divisors (1755325007404).

2261011651252 is a wasteful number, since it uses less digits than its factorization.

2261011651252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071487 (or 1071485 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 2261011651252 its reverse (2521561101622), we get a palindrome (4782572752874).

The spelling of 2261011651252 in words is "two trillion, two hundred sixty-one billion, eleven million, six hundred fifty-one thousand, two hundred fifty-two".