210220212194 has 16 divisors (see below), whose sum is σ = 321325418232. Its totient is φ = 103112300928.

The previous prime is 210220212133. The next prime is 210220212227. The reversal of 210220212194 is 491212022012.

It can be written as a sum of positive squares in 4 ways, for example, as 210180987025 + 39225169 = 458455^2 + 6263^2 .

It is a super-2 number, since 2×210220212194² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

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, 632102 + ... + 905534.

Almost surely, 2^210220212194 is an apocalyptic number.

210220212194 is a deficient number, since it is larger than the sum of its proper divisors (111105206038).

210220212194 is a wasteful number, since it uses less digits than its factorization.

210220212194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280741.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 210220212194 in words is "two hundred ten billion, two hundred twenty million, two hundred twelve thousand, one hundred ninety-four".