2216111685418 has 16 divisors (see below), whose sum is σ = 3330971028000. Its totient is φ = 1105788199536.

The previous prime is 2216111685409. The next prime is 2216111685427. The reversal of 2216111685418 is 8145861116122.

It is an interprime number because it is at equal distance from previous prime (2216111685409) and next prime (2216111685427).

It is a super-2 number, since 2×2216111685418² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43314580 + ... + 43365712.

It is an arithmetic number, because the mean of its divisors is an integer number (208185689250).

Almost surely, 2^{2216111685418} is an apocalyptic number.

2216111685418 is a deficient number, since it is larger than the sum of its proper divisors (1114859342582).

2216111685418 is a wasteful number, since it uses less digits than its factorization.

2216111685418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95061.

The product of its digits is 184320, while the sum is 46.

The spelling of 2216111685418 in words is "two trillion, two hundred sixteen billion, one hundred eleven million, six hundred eighty-five thousand, four hundred eighteen".