20212001122 has 4 divisors (see below), whose sum is σ = 30318001686. Its totient is φ = 10106000560.

The previous prime is 20212001113. The next prime is 20212001207. The reversal of 20212001122 is 22110021202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22110021202 = 2 ⋅11055010601.

It can be written as a sum of positive squares in only one way, i.e., 19932074761 + 279926361 = 141181^2 + 16731^2 .

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 as a sum of consecutive naturals, namely, 5053000279 + ... + 5053000282.

Almost surely, 2^20212001122 is an apocalyptic number.

20212001122 is a deficient number, since it is larger than the sum of its proper divisors (10106000564).

20212001122 is a wasteful number, since it uses less digits than its factorization.

20212001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106000563.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20212001122 its reverse (22110021202), we get a palindrome (42322022324).

The spelling of 20212001122 in words is "twenty billion, two hundred twelve million, one thousand, one hundred twenty-two".