212210223525291 has 16 divisors (see below), whose sum is σ = 293128705983488. Its totient is φ = 136415562328800.

The previous prime is 212210223525263. The next prime is 212210223525301. The reversal of 212210223525291 is 192525322012212.

It is not a de Polignac number, because 212210223525291 - 2¹³ = 212210223517099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212210223526291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4118801605 + ... + 4118853126.

It is an arithmetic number, because the mean of its divisors is an integer number (18320544123968).

Almost surely, 2^{212210223525291} is an apocalyptic number.

212210223525291 is a deficient number, since it is larger than the sum of its proper divisors (80918482458197).

212210223525291 is a wasteful number, since it uses less digits than its factorization.

212210223525291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8237655042.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 212210223525291 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twenty-three million, five hundred twenty-five thousand, two hundred ninety-one".