2012211999997 has 2 divisors, whose sum is σ = 2012211999998. Its totient is φ = 2012211999996.

The previous prime is 2012211999961. The next prime is 2012212000009. The reversal of 2012211999997 is 7999991122102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1713949654041 + 298262345956 = 1309179^2 + 546134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012211999997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012211999907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006105999998 + 1006105999999.

It is an arithmetic number, because the mean of its divisors is an integer number (1006105999999).

Almost surely, 2^{2012211999997} is an apocalyptic number.

It is an amenable number.

2012211999997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012211999997 is an equidigital number, since it uses as much as digits as its factorization.

2012211999997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 61.

The spelling of 2012211999997 in words is "two trillion, twelve billion, two hundred eleven million, nine hundred ninety-nine thousand, nine hundred ninety-seven".