1301221029 has 16 divisors (see below), whose sum is σ = 1756503360. Its totient is φ = 856732800.

The previous prime is 1301221007. The next prime is 1301221037. The reversal of 1301221029 is 9201221031.

1301221029 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1301221029 - 2¹² = 1301216933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1301220996 and 1301221014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301221529) 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, 278299 + ... + 282935.

It is an arithmetic number, because the mean of its divisors is an integer number (109781460).

Almost surely, 2^1301221029 is an apocalyptic number.

It is an amenable number.

1301221029 is a deficient number, since it is larger than the sum of its proper divisors (455282331).

1301221029 is a wasteful number, since it uses less digits than its factorization.

1301221029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1301221029 is about 36072.4414061483. The cubic root of 1301221029 is about 1091.7344741778.

The spelling of 1301221029 in words is "one billion, three hundred one million, two hundred twenty-one thousand, twenty-nine".