1212006563427 has 32 divisors (see below), whose sum is σ = 1926833301504. Its totient is φ = 669039321600.

The previous prime is 1212006563399. The next prime is 1212006563447. The reversal of 1212006563427 is 7243656002121.

It is not a de Polignac number, because 1212006563427 - 2⁸ = 1212006563171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212006563447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34828408 + ... + 34863189.

It is an arithmetic number, because the mean of its divisors is an integer number (60213540672).

Almost surely, 2^{1212006563427} is an apocalyptic number.

1212006563427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1212006563427 is a deficient number, since it is larger than the sum of its proper divisors (714826738077).

1212006563427 is a wasteful number, since it uses less digits than its factorization.

1212006563427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69691659.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 1212006563427 in words is "one trillion, two hundred twelve billion, six million, five hundred sixty-three thousand, four hundred twenty-seven".