2166222136210 has 32 divisors (see below), whose sum is σ = 4253745004992. Its totient is φ = 787703724480.

The previous prime is 2166222136139. The next prime is 2166222136259. The reversal of 2166222136210 is 126312226612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8217372 + ... + 8476888.

It is an arithmetic number, because the mean of its divisors is an integer number (132929531406).

Almost surely, 2^{2166222136210} is an apocalyptic number.

2166222136210 is a deficient number, since it is larger than the sum of its proper divisors (2087522868782).

2166222136210 is a wasteful number, since it uses less digits than its factorization.

2166222136210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335418.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 2166222136210 in words is "two trillion, one hundred sixty-six billion, two hundred twenty-two million, one hundred thirty-six thousand, two hundred ten".