1211036064 has 48 divisors (see below), whose sum is σ = 3633110208. Its totient is φ = 346010112.

The previous prime is 1211036063. The next prime is 1211036069. The reversal of 1211036064 is 4606301121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1211036064² = 2933216696617224192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1211036063) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 900397 + ... + 901740.

It is an arithmetic number, because the mean of its divisors is an integer number (75689796).

Almost surely, 2^1211036064 is an apocalyptic number.

1211036064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1211036064 is an abundant number, since it is smaller than the sum of its proper divisors (2422074144).

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

1211036064 is a wasteful number, since it uses less digits than its factorization.

1211036064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802157 (or 1802149 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1211036064 is about 34799.9434482299. The cubic root of 1211036064 is about 1065.9062910796.

Adding to 1211036064 its reverse (4606301121), we get a palindrome (5817337185).

The spelling of 1211036064 in words is "one billion, two hundred eleven million, thirty-six thousand, sixty-four".