1301012212221 has 12 divisors (see below), whose sum is σ = 1978147223520. Its totient is φ = 821691923400.

The previous prime is 1301012212207. The next prime is 1301012212229. The reversal of 1301012212221 is 1222122101031.

1301012212221 is a `hidden beast` number, since 130 + 101 + 2 + 212 + 221 = 666.

It is not a de Polignac number, because 1301012212221 - 2⁵ = 1301012212189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1301012212194 and 1301012212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301012212229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3804129105 + ... + 3804129446.

It is an arithmetic number, because the mean of its divisors is an integer number (164845601960).

Almost surely, 2^{1301012212221} is an apocalyptic number.

It is an amenable number.

1301012212221 is a deficient number, since it is larger than the sum of its proper divisors (677135011299).

1301012212221 is a wasteful number, since it uses less digits than its factorization.

1301012212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7608258576 (or 7608258573 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1301012212221 its reverse (1222122101031), we get a palindrome (2523134313252).

The spelling of 1301012212221 in words is "one trillion, three hundred one billion, twelve million, two hundred twelve thousand, two hundred twenty-one".