212133321320122 has 4 divisors (see below), whose sum is σ = 318199981980186. Its totient is φ = 106066660660060.

The previous prime is 212133321320101. The next prime is 212133321320257. The reversal of 212133321320122 is 221023123331212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 191766522384441 + 20366798935681 = 13847979^2 + 4512959^2 .

It is a super-2 number, since 2×212133321320122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 53033330330029 + ... + 53033330330032.

Almost surely, 2^{212133321320122} is an apocalyptic number.

212133321320122 is a deficient number, since it is larger than the sum of its proper divisors (106066660660064).

212133321320122 is a wasteful number, since it uses less digits than its factorization.

212133321320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106066660660063.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 212133321320122 its reverse (221023123331212), we get a palindrome (433156444651334).

The spelling of 212133321320122 in words is "two hundred twelve trillion, one hundred thirty-three billion, three hundred twenty-one million, three hundred twenty thousand, one hundred twenty-two".