1012212011971 has 2 divisors, whose sum is σ = 1012212011972. Its totient is φ = 1012212011970.

The previous prime is 1012212011959. The next prime is 1012212012067. The reversal of 1012212011971 is 1791102122101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012212011971 - 2¹³ = 1012212003779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012212011471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506106005985 + 506106005986.

It is an arithmetic number, because the mean of its divisors is an integer number (506106005986).

Almost surely, 2^{1012212011971} is an apocalyptic number.

1012212011971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012212011971 is an equidigital number, since it uses as much as digits as its factorization.

1012212011971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 28.

The spelling of 1012212011971 in words is "one trillion, twelve billion, two hundred twelve million, eleven thousand, nine hundred seventy-one".