1201226543146 has 16 divisors (see below), whose sum is σ = 2059270557120. Its totient is φ = 514805112000.

The previous prime is 1201226543107. The next prime is 1201226543177. The reversal of 1201226543146 is 6413456221021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782146 + ... + 1736146.

It is an arithmetic number, because the mean of its divisors is an integer number (128704409820).

Almost surely, 2^{1201226543146} is an apocalyptic number.

1201226543146 is a deficient number, since it is larger than the sum of its proper divisors (858044013974).

1201226543146 is an equidigital number, since it uses as much as digits as its factorization.

1201226543146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043949.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 1201226543146 in words is "one trillion, two hundred one billion, two hundred twenty-six million, five hundred forty-three thousand, one hundred forty-six".