212012120021022 has 48 divisors (see below), whose sum is σ = 460597511396880. Its totient is φ = 70480263010176.

The previous prime is 212012120021017. The next prime is 212012120021057. The reversal of 212012120021022 is 220120021210212.

It is a happy number.

212012120021022 is a `hidden beast` number, since 21 + 201 + 212 + 0 + 0 + 210 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212012120020986 and 212012120021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 610444554 + ... + 610791762.

It is an arithmetic number, because the mean of its divisors is an integer number (9595781487435).

Almost surely, 2^{212012120021022} is an apocalyptic number.

212012120021022 is an abundant number, since it is smaller than the sum of its proper divisors (248585391375858).

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

212012120021022 is a wasteful number, since it uses less digits than its factorization.

212012120021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438537 (or 438534 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212012120021022 its reverse (220120021210212), we get a palindrome (432132141231234).

The spelling of 212012120021022 in words is "two hundred twelve trillion, twelve billion, one hundred twenty million, twenty-one thousand, twenty-two".