2215540250311 has 2 divisors, whose sum is σ = 2215540250312. Its totient is φ = 2215540250310.

The previous prime is 2215540250303. The next prime is 2215540250369. The reversal of 2215540250311 is 1130520455122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215540250311 - 2³ = 2215540250303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215540250611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107770125155 + 1107770125156.

It is an arithmetic number, because the mean of its divisors is an integer number (1107770125156).

Almost surely, 2^{2215540250311} is an apocalyptic number.

2215540250311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215540250311 is an equidigital number, since it uses as much as digits as its factorization.

2215540250311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 2215540250311 in words is "two trillion, two hundred fifteen billion, five hundred forty million, two hundred fifty thousand, three hundred eleven".