2154224512 has 32 divisors (see below), whose sum is σ = 4681769400. Its totient is φ = 979192320.

The previous prime is 2154224509. The next prime is 2154224519.

It is a happy number.

2154224512 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154224519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763587 + ... + 766402.

Almost surely, 2^2154224512 is an apocalyptic number.

2154224512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2154224512 is an abundant number, since it is smaller than the sum of its proper divisors (2527544888).

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

2154224512 is a wasteful number, since it uses less digits than its factorization.

2154224512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530014 (or 1530002 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 2154224512 is about 46413.6242066917. The cubic root of 2154224512 is about 1291.5076641758.

The spelling of 2154224512 in words is "two billion, one hundred fifty-four million, two hundred twenty-four thousand, five hundred twelve".