211220002122022 has 4 divisors (see below), whose sum is σ = 316830003183036. Its totient is φ = 105610001061010.

The previous prime is 211220002122011. The next prime is 211220002122029. The reversal of 211220002122022 is 220221200022112.

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

It is a super-2 number, since 2×211220002122022² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220002122029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52805000530504 + ... + 52805000530507.

It is an arithmetic number, because the mean of its divisors is an integer number (79207500795759).

Almost surely, 2^{211220002122022} is an apocalyptic number.

211220002122022 is a deficient number, since it is larger than the sum of its proper divisors (105610001061014).

211220002122022 is a wasteful number, since it uses less digits than its factorization.

211220002122022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105610001061013.

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

Adding to 211220002122022 its reverse (220221200022112), we get a palindrome (431441202144134).

The spelling of 211220002122022 in words is "two hundred eleven trillion, two hundred twenty billion, two million, one hundred twenty-two thousand, twenty-two".