1260221060 has 48 divisors (see below), whose sum is σ = 3156039936. Its totient is φ = 413288832.

The previous prime is 1260221047. The next prime is 1260221063. The reversal of 1260221060 is 601220621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1260221063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192467 + ... + 198906.

It is an arithmetic number, because the mean of its divisors is an integer number (65750832).

Almost surely, 2^1260221060 is an apocalyptic number.

1260221060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260221060 is an abundant number, since it is smaller than the sum of its proper divisors (1895818876).

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

1260221060 is a wasteful number, since it uses less digits than its factorization.

1260221060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391412 (or 391410 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1260221060 is about 35499.5923920261. The cubic root of 1260221060 is about 1080.1454593746.

Adding to 1260221060 its reverse (601220621), we get a palindrome (1861441681).

The spelling of 1260221060 in words is "one billion, two hundred sixty million, two hundred twenty-one thousand, sixty".