21211110210022 has 8 divisors (see below), whose sum is σ = 31820425731072. Its totient is φ = 10604301633000.

The previous prime is 21211110210011. The next prime is 21211110210089. The reversal of 21211110210022 is 22001201111212.

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

It is a super-2 number, since 2×21211110210022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21211110209978 and 21211110210005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626714854 + ... + 626748697.

It is an arithmetic number, because the mean of its divisors is an integer number (3977553216384).

Almost surely, 2^{21211110210022} is an apocalyptic number.

21211110210022 is a deficient number, since it is larger than the sum of its proper divisors (10609315521050).

21211110210022 is a wasteful number, since it uses less digits than its factorization.

21211110210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253472014.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21211110210022 its reverse (22001201111212), we get a palindrome (43212311321234).

The spelling of 21211110210022 in words is "twenty-one trillion, two hundred eleven billion, one hundred ten million, two hundred ten thousand, twenty-two".