1212772027 has 12 divisors (see below), whose sum is σ = 1290384856. Its totient is φ = 1139592960.

The previous prime is 1212772019. The next prime is 1212772031. The reversal of 1212772027 is 7202772121.

It is not a de Polignac number, because 1212772027 - 2³ = 1212772019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212772027.

It is not an unprimeable number, because it can be changed into a prime (1212772927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196663 + ... + 202735.

Almost surely, 2^1212772027 is an apocalyptic number.

1212772027 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1212772027 is a deficient number, since it is larger than the sum of its proper divisors (77612829).

1212772027 is an equidigital number, since it uses as much as digits as its factorization.

1212772027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6798 (or 6781 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 1212772027 is about 34824.8765539808. The cubic root of 1212772027 is about 1066.4153566915.

The spelling of 1212772027 in words is "one billion, two hundred twelve million, seven hundred seventy-two thousand, twenty-seven".