1222541300 has 36 divisors (see below), whose sum is σ = 2670516576. Its totient is φ = 485772000.

The previous prime is 1222541273. The next prime is 1222541317. The reversal of 1222541300 is 31452221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25382 + ... + 55581.

It is an arithmetic number, because the mean of its divisors is an integer number (74181016).

Almost surely, 2^1222541300 is an apocalyptic number.

1222541300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222541300 is an abundant number, since it is smaller than the sum of its proper divisors (1447975276).

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

1222541300 is a wasteful number, since it uses less digits than its factorization.

1222541300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81128 (or 81121 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1222541300 is about 34964.8580720700. The cubic root of 1222541300 is about 1069.2711430783.

Adding to 1222541300 its reverse (31452221), we get a palindrome (1253993521).

The spelling of 1222541300 in words is "one billion, two hundred twenty-two million, five hundred forty-one thousand, three hundred".