21011200212022 has 8 divisors (see below), whose sum is σ = 33175579282200. Its totient is φ = 9952673784624.

The previous prime is 21011200212001. The next prime is 21011200212029. The reversal of 21011200212022 is 22021200211012.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 21011200211987 and 21011200212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011200212029) 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, 276463160647 + ... + 276463160722.

It is an arithmetic number, because the mean of its divisors is an integer number (4146947410275).

Almost surely, 2^{21011200212022} is an apocalyptic number.

21011200212022 is a deficient number, since it is larger than the sum of its proper divisors (12164379070178).

21011200212022 is a wasteful number, since it uses less digits than its factorization.

21011200212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552926321390.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21011200212022 its reverse (22021200211012), we get a palindrome (43032400423034).

The spelling of 21011200212022 in words is "twenty-one trillion, eleven billion, two hundred million, two hundred twelve thousand, twenty-two".