21111123223322 has 8 divisors (see below), whose sum is σ = 34545474365472. Its totient is φ = 9595965101500.

The previous prime is 21111123223321. The next prime is 21111123223369. The reversal of 21111123223322 is 22332232111112.

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 = 21111123223291 and 21111123223300.

It is not an unprimeable number, because it can be changed into a prime (21111123223321) 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, 479798255054 + ... + 479798255097.

It is an arithmetic number, because the mean of its divisors is an integer number (4318184295684).

Almost surely, 2^{21111123223322} is an apocalyptic number.

21111123223322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21111123223322 is a deficient number, since it is larger than the sum of its proper divisors (13434351142150).

21111123223322 is a wasteful number, since it uses less digits than its factorization.

21111123223322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959596510164.

The product of its digits is 1728, while the sum is 26.

Adding to 21111123223322 its reverse (22332232111112), we get a palindrome (43443355334434).

The spelling of 21111123223322 in words is "twenty-one trillion, one hundred eleven billion, one hundred twenty-three million, two hundred twenty-three thousand, three hundred twenty-two".