1222531104 has 48 divisors (see below), whose sum is σ = 3210943680. Its totient is φ = 407281920.

The previous prime is 1222531087. The next prime is 1222531109. The reversal of 1222531104 is 4011352221.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1222531109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331189 + ... + 334859.

It is an arithmetic number, because the mean of its divisors is an integer number (66894660).

Almost surely, 2^1222531104 is an apocalyptic number.

It is an amenable number.

1222531104 is an abundant number, since it is smaller than the sum of its proper divisors (1988412576).

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

1222531104 is a wasteful number, since it uses less digits than its factorization.

1222531104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7153 (or 7145 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1222531104 is about 34964.7122682284. The cubic root of 1222531104 is about 1069.2681704947.

Adding to 1222531104 its reverse (4011352221), we get a palindrome (5233883325).

The spelling of 1222531104 in words is "one billion, two hundred twenty-two million, five hundred thirty-one thousand, one hundred four".