1121225274 has 32 divisors (see below), whose sum is σ = 2683275840. Its totient is φ = 344992176.

The previous prime is 1121225263. The next prime is 1121225297. The reversal of 1121225274 is 4725221211.

It is a happy number.

1121225274 is a `hidden beast` number, since 1 + 12 + 122 + 527 + 4 = 666.

It is a super-2 number, since 2×1121225274² = 2514292230112750152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797892 + ... + 799295.

It is an arithmetic number, because the mean of its divisors is an integer number (83852370).

Almost surely, 2^1121225274 is an apocalyptic number.

1121225274 is an abundant number, since it is smaller than the sum of its proper divisors (1562050566).

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

1121225274 is a wasteful number, since it uses less digits than its factorization.

1121225274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597211 (or 1597205 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 1121225274 is about 33484.7020891630. The cubic root of 1121225274 is about 1038.8773864027.

Adding to 1121225274 its reverse (4725221211), we get a palindrome (5846446485).

The spelling of 1121225274 in words is "one billion, one hundred twenty-one million, two hundred twenty-five thousand, two hundred seventy-four".