1206121171451 has 12 divisors (see below), whose sum is σ = 1464277608528. Its totient is φ = 973005313152.

The previous prime is 1206121171447. The next prime is 1206121171469. The reversal of 1206121171451 is 1541711216021.

It is not a de Polignac number, because 1206121171451 - 2² = 1206121171447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1206121171471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298100096 + ... + 298104141.

It is an arithmetic number, because the mean of its divisors is an integer number (122023134044).

Almost surely, 2^{1206121171451} is an apocalyptic number.

1206121171451 is a deficient number, since it is larger than the sum of its proper divisors (258156437077).

1206121171451 is an equidigital number, since it uses as much as digits as its factorization.

1206121171451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596204278 (or 596204261 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 32.

Adding to 1206121171451 its reverse (1541711216021), we get a palindrome (2747832387472).

The spelling of 1206121171451 in words is "one trillion, two hundred six billion, one hundred twenty-one million, one hundred seventy-one thousand, four hundred fifty-one".