1206712052205 has 64 divisors (see below), whose sum is σ = 2180542906368. Its totient is φ = 564779727360.

The previous prime is 1206712052201. The next prime is 1206712052207. The reversal of 1206712052205 is 5022502176021.

It is not a de Polignac number, because 1206712052205 - 2² = 1206712052201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206712052201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 499669 + ... + 1631898.

It is an arithmetic number, because the mean of its divisors is an integer number (34070982912).

Almost surely, 2^{1206712052205} is an apocalyptic number.

1206712052205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1206712052205 is a deficient number, since it is larger than the sum of its proper divisors (973830854163).

1206712052205 is a wasteful number, since it uses less digits than its factorization.

1206712052205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131706.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 1206712052205 in words is "one trillion, two hundred six billion, seven hundred twelve million, fifty-two thousand, two hundred five".