212221020021022 has 4 divisors (see below), whose sum is σ = 318331530031536. Its totient is φ = 106110510010510.

The previous prime is 212221020020819. The next prime is 212221020021079. The reversal of 212221020021022 is 220120020122212.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×212221020021022² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53055255005254 + ... + 53055255005257.

It is an arithmetic number, because the mean of its divisors is an integer number (79582882507884).

Almost surely, 2^{212221020021022} is an apocalyptic number.

212221020021022 is a deficient number, since it is larger than the sum of its proper divisors (106110510010514).

212221020021022 is a wasteful number, since it uses less digits than its factorization.

212221020021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106110510010513.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212221020021022 its reverse (220120020122212), we get a palindrome (432341040143234).

The spelling of 212221020021022 in words is "two hundred twelve trillion, two hundred twenty-one billion, twenty million, twenty-one thousand, twenty-two".