1221202233113 has 8 divisors (see below), whose sum is σ = 1265247507456. Its totient is φ = 1177447687200.

The previous prime is 1221202233101. The next prime is 1221202233127. The reversal of 1221202233113 is 3113322021221.

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

It is a cyclic number.

It is not a de Polignac number, because 1221202233113 - 2³⁰ = 1220128491289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1221202233413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72673556 + ... + 72690357.

It is an arithmetic number, because the mean of its divisors is an integer number (158155938432).

Almost surely, 2^{1221202233113} is an apocalyptic number.

It is an amenable number.

1221202233113 is a deficient number, since it is larger than the sum of its proper divisors (44045274343).

1221202233113 is a wasteful number, since it uses less digits than its factorization.

1221202233113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145364215.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1221202233113 its reverse (3113322021221), we get a palindrome (4334524254334).

The spelling of 1221202233113 in words is "one trillion, two hundred twenty-one billion, two hundred two million, two hundred thirty-three thousand, one hundred thirteen".