12205512354 has 16 divisors (see below), whose sum is σ = 27898314048. Its totient is φ = 3487289232.

The previous prime is 12205512331. The next prime is 12205512383. The reversal of 12205512354 is 45321550221.

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, 145303677 + ... + 145303760.

It is an arithmetic number, because the mean of its divisors is an integer number (1743644628).

Almost surely, 2^12205512354 is an apocalyptic number.

12205512354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12205512354 is an abundant number, since it is smaller than the sum of its proper divisors (15692801694).

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

12205512354 is a wasteful number, since it uses less digits than its factorization.

12205512354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290607449.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 12205512354 in words is "twelve billion, two hundred five million, five hundred twelve thousand, three hundred fifty-four".