1221301310102 has 8 divisors (see below), whose sum is σ = 1833118075512. Its totient is φ = 610261951600.

The previous prime is 1221301310083. The next prime is 1221301310143. The reversal of 1221301310102 is 2010131031221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194347799 + ... + 194354082.

It is an arithmetic number, because the mean of its divisors is an integer number (229139759439).

Almost surely, 2^{1221301310102} is an apocalyptic number.

1221301310102 is a deficient number, since it is larger than the sum of its proper divisors (611816765410).

1221301310102 is a wasteful number, since it uses less digits than its factorization.

1221301310102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388703454.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1221301310102 its reverse (2010131031221), we get a palindrome (3231432341323).

The spelling of 1221301310102 in words is "one trillion, two hundred twenty-one billion, three hundred one million, three hundred ten thousand, one hundred two".