1221130100737 has 8 divisors (see below), whose sum is σ = 1233910786752. Its totient is φ = 1208362950000.

The previous prime is 1221130100717. The next prime is 1221130100759. The reversal of 1221130100737 is 7370010311221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1221130100737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1221130100717) 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, 3202389 + ... + 3563362.

It is an arithmetic number, because the mean of its divisors is an integer number (154238848344).

Almost surely, 2^{1221130100737} is an apocalyptic number.

It is an amenable number.

1221130100737 is a deficient number, since it is larger than the sum of its proper divisors (12780686015).

1221130100737 is a wasteful number, since it uses less digits than its factorization.

1221130100737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6767639.

The product of its (nonzero) digits is 1764, while the sum is 28.

Adding to 1221130100737 its reverse (7370010311221), we get a palindrome (8591140411958).

The spelling of 1221130100737 in words is "one trillion, two hundred twenty-one billion, one hundred thirty million, one hundred thousand, seven hundred thirty-seven".