1301221030 has 16 divisors (see below), whose sum is σ = 2349154080. Its totient is φ = 518942592.

The previous prime is 1301221007. The next prime is 1301221037. The reversal of 1301221030 is 301221031.

It is a self number, because there is not a number n which added to its sum of digits gives 1301221030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301221037) 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, 189690 + ... + 196429.

It is an arithmetic number, because the mean of its divisors is an integer number (146822130).

Almost surely, 2^1301221030 is an apocalyptic number.

1301221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1301221030 is a deficient number, since it is larger than the sum of its proper divisors (1047933050).

1301221030 is a wasteful number, since it uses less digits than its factorization.

1301221030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386463.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1301221030 is about 36072.4414200093. The cubic root of 1301221030 is about 1091.7344744574.

Adding to 1301221030 its reverse (301221031), we get a palindrome (1602442061).

Subtracting from 1301221030 its reverse (301221031), we obtain a palindrome (999999999).

The spelling of 1301221030 in words is "one billion, three hundred one million, two hundred twenty-one thousand, thirty".