212022012122 has 8 divisors (see below), whose sum is σ = 336740842836. Its totient is φ = 99775064512.

The previous prime is 212022012121. The next prime is 212022012131. The reversal of 212022012122 is 221210220212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 194577149881 + 17444862241 = 441109^2 + 132079^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 212022012122.

It is not an unprimeable number, because it can be changed into a prime (212022012121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3117970733 + ... + 3117970800.

Almost surely, 2^212022012122 is an apocalyptic number.

212022012122 is a deficient number, since it is larger than the sum of its proper divisors (124718830714).

212022012122 is a wasteful number, since it uses less digits than its factorization.

212022012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235941552.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212022012122 its reverse (221210220212), we get a palindrome (433232232334).

The spelling of 212022012122 in words is "two hundred twelve billion, twenty-two million, twelve thousand, one hundred twenty-two".