2212201999951 has 2 divisors, whose sum is σ = 2212201999952. Its totient is φ = 2212201999950.

The previous prime is 2212201999939. The next prime is 2212201999961. The reversal of 2212201999951 is 1599991022122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212201999951 - 2³¹ = 2210054516303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212201999921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106100999975 + 1106100999976.

It is an arithmetic number, because the mean of its divisors is an integer number (1106100999976).

Almost surely, 2^{2212201999951} is an apocalyptic number.

2212201999951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212201999951 is an equidigital number, since it uses as much as digits as its factorization.

2212201999951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 52.

The spelling of 2212201999951 in words is "two trillion, two hundred twelve billion, two hundred one million, nine hundred ninety-nine thousand, nine hundred fifty-one".