1212092064 has 144 divisors (see below), whose sum is σ = 3589447680. Its totient is φ = 387555840.

The previous prime is 1212092051. The next prime is 1212092081. The reversal of 1212092064 is 4602902121.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1212092064² = 2938334343223560192, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1133322 + ... + 1134390.

It is an arithmetic number, because the mean of its divisors is an integer number (24926720).

Almost surely, 2^1212092064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212092064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1794723840).

1212092064 is an abundant number, since it is smaller than the sum of its proper divisors (2377355616).

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

1212092064 is a wasteful number, since it uses less digits than its factorization.

1212092064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1212092064 is about 34815.1125806021. The cubic root of 1212092064 is about 1066.2160176211.

Adding to 1212092064 its reverse (4602902121), we get a palindrome (5814994185).

The spelling of 1212092064 in words is "one billion, two hundred twelve million, ninety-two thousand, sixty-four".