212021121122 has 8 divisors (see below), whose sum is σ = 331859146176. Its totient is φ = 101401405732.

The previous prime is 212021121107. The next prime is 212021121131. The reversal of 212021121122 is 221121120212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 212021121122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304577358 + ... + 2304577449.

It is an arithmetic number, because the mean of its divisors is an integer number (41482393272).

Almost surely, 2^212021121122 is an apocalyptic number.

212021121122 is a deficient number, since it is larger than the sum of its proper divisors (119838025054).

212021121122 is a wasteful number, since it uses less digits than its factorization.

212021121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609154832.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212021121122 its reverse (221121120212), we get a palindrome (433142241334).

The spelling of 212021121122 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".