1210771216 has 20 divisors (see below), whose sum is σ = 2421543424. Its totient is φ = 585856800.

The previous prime is 1210771207. The next prime is 1210771217. The reversal of 1210771216 is 6121770121.

1210771216 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1210771217) 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, 1220040 + ... + 1221031.

Almost surely, 2^1210771216 is an apocalyptic number.

1210771216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1210771216 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1210771216 is a wasteful number, since it uses less digits than its factorization.

1210771216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441110 (or 2441104 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 1210771216 is about 34796.1379466170. The cubic root of 1210771216 is about 1065.8285824850.

The spelling of 1210771216 in words is "one billion, two hundred ten million, seven hundred seventy-one thousand, two hundred sixteen".