2221135512 has 64 divisors (see below), whose sum is σ = 5619302400. Its totient is φ = 731566080.

The previous prime is 2221135487. The next prime is 2221135537. The reversal of 2221135512 is 2155311222.

It is an interprime number because it is at equal distance from previous prime (2221135487) and next prime (2221135537).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 824664 + ... + 827352.

It is an arithmetic number, because the mean of its divisors is an integer number (87801600).

Almost surely, 2^2221135512 is an apocalyptic number.

It is an amenable number.

2221135512 is an abundant number, since it is smaller than the sum of its proper divisors (3398166888).

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

2221135512 is a wasteful number, since it uses less digits than its factorization.

2221135512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096 (or 3092 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 2221135512 is about 47128.9243671018. The cubic root of 2221135512 is about 1304.7431293718.

Adding to 2221135512 its reverse (2155311222), we get a palindrome (4376446734).

The spelling of 2221135512 in words is "two billion, two hundred twenty-one million, one hundred thirty-five thousand, five hundred twelve".