2111171697290 has 8 divisors (see below), whose sum is σ = 3800109055140. Its totient is φ = 844468678912.

The previous prime is 2111171697251. The next prime is 2111171697329. The reversal of 2111171697290 is 927961711112.

It is an interprime number because it is at equal distance from previous prime (2111171697251) and next prime (2111171697329).

It can be written as a sum of positive squares in 2 ways, for example, as 1770105185209 + 341066512081 = 1330453^2 + 584009^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105558584855 + ... + 105558584874.

Almost surely, 2^{2111171697290} is an apocalyptic number.

2111171697290 is a deficient number, since it is larger than the sum of its proper divisors (1688937357850).

2111171697290 is a wasteful number, since it uses less digits than its factorization.

2111171697290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211117169736.

The product of its (nonzero) digits is 95256, while the sum is 47.

The spelling of 2111171697290 in words is "two trillion, one hundred eleven billion, one hundred seventy-one million, six hundred ninety-seven thousand, two hundred ninety".