212012121211122 has 32 divisors (see below), whose sum is σ = 425717376860160. Its totient is φ = 70388523018000.

The previous prime is 212012121211109. The next prime is 212012121211127. The reversal of 212012121211122 is 221112121210212.

It is not an unprimeable number, because it can be changed into a prime (212012121211127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186996579 + ... + 188126937.

It is an arithmetic number, because the mean of its divisors is an integer number (13303668026880).

Almost surely, 2^{212012121211122} is an apocalyptic number.

212012121211122 is an abundant number, since it is smaller than the sum of its proper divisors (213705255649038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212012121211122 is a wasteful number, since it uses less digits than its factorization.

212012121211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255158.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 212012121211122 its reverse (221112121210212), we get a palindrome (433124242421334).

The spelling of 212012121211122 in words is "two hundred twelve trillion, twelve billion, one hundred twenty-one million, two hundred eleven thousand, one hundred twenty-two".