2221152774 has 8 divisors (see below), whose sum is σ = 4442305560. Its totient is φ = 740384256.

The previous prime is 2221152767. The next prime is 2221152781. The reversal of 2221152774 is 4772511222.

It is an interprime number because it is at equal distance from previous prime (2221152767) and next prime (2221152781).

It is a sphenic number, since it is the product of 3 distinct primes.

2221152774 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185096059 + ... + 185096070.

It is an arithmetic number, because the mean of its divisors is an integer number (555288195).

Almost surely, 2^2221152774 is an apocalyptic number.

2221152774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2221152774 is a wasteful number, since it uses less digits than its factorization.

2221152774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370192134.

The product of its digits is 15680, while the sum is 33.

The square root of 2221152774 is about 47129.1075026888. The cubic root of 2221152774 is about 1304.7465093874.

Adding to 2221152774 its reverse (4772511222), we get a palindrome (6993663996).

The spelling of 2221152774 in words is "two billion, two hundred twenty-one million, one hundred fifty-two thousand, seven hundred seventy-four".