20212011422 has 4 divisors (see below), whose sum is σ = 30318017136. Its totient is φ = 10106005710.

The previous prime is 20212011409. The next prime is 20212011427. The reversal of 20212011422 is 22411021202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22411021202 = 2 ⋅11205510601.

It is a self number, because there is not a number n which added to its sum of digits gives 20212011422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212011427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053002854 + ... + 5053002857.

It is an arithmetic number, because the mean of its divisors is an integer number (7579504284).

Almost surely, 2^20212011422 is an apocalyptic number.

20212011422 is a deficient number, since it is larger than the sum of its proper divisors (10106005714).

20212011422 is a wasteful number, since it uses less digits than its factorization.

20212011422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106005713.

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

Adding to 20212011422 its reverse (22411021202), we get a palindrome (42623032624).

The spelling of 20212011422 in words is "twenty billion, two hundred twelve million, eleven thousand, four hundred twenty-two".