1206721232706 has 32 divisors (see below), whose sum is σ = 2656145867328. Its totient is φ = 362437053440.

The previous prime is 1206721232701. The next prime is 1206721232707. The reversal of 1206721232706 is 6072321276021.

It is a super-2 number, since 2×1206721232706² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1206721232701) 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, 80893671 + ... + 80908586.

It is an arithmetic number, because the mean of its divisors is an integer number (83004558354).

Almost surely, 2^{1206721232706} is an apocalyptic number.

1206721232706 is an abundant number, since it is smaller than the sum of its proper divisors (1449424634622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1206721232706 is a wasteful number, since it uses less digits than its factorization.

1206721232706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161802386.

The product of its (nonzero) digits is 84672, while the sum is 39.

The spelling of 1206721232706 in words is "one trillion, two hundred six billion, seven hundred twenty-one million, two hundred thirty-two thousand, seven hundred six".