1220522052 has 12 divisors (see below), whose sum is σ = 2847884816. Its totient is φ = 406840680.

The previous prime is 1220522033. The next prime is 1220522081. The reversal of 1220522052 is 2502250221.

It is a tau number, because it is divible by the number of its divisors (12).

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, 50855074 + ... + 50855097.

Almost surely, 2^1220522052 is an apocalyptic number.

1220522052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220522052 is an abundant number, since it is smaller than the sum of its proper divisors (1627362764).

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

1220522052 is a wasteful number, since it uses less digits than its factorization.

1220522052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101710178 (or 101710176 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1220522052 is about 34935.9707464957. The cubic root of 1220522052 is about 1068.6821204589.

Adding to 1220522052 its reverse (2502250221), we get a palindrome (3722772273).

The spelling of 1220522052 in words is "one billion, two hundred twenty million, five hundred twenty-two thousand, fifty-two".