21111101022022 has 8 divisors (see below), whose sum is σ = 34545438036072. Its totient is φ = 9595955010000.

The previous prime is 21111101021999. The next prime is 21111101022031. The reversal of 21111101022022 is 22022010111112.

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 = 21111101021987 and 21111101022005.

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, 479797750479 + ... + 479797750522.

It is an arithmetic number, because the mean of its divisors is an integer number (4318179754509).

Almost surely, 2^{21111101022022} is an apocalyptic number.

21111101022022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21111101022022 is a deficient number, since it is larger than the sum of its proper divisors (13434337014050).

21111101022022 is a wasteful number, since it uses less digits than its factorization.

21111101022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959595501014.

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

Adding to 21111101022022 its reverse (22022010111112), we get a palindrome (43133111133134).

The spelling of 21111101022022 in words is "twenty-one trillion, one hundred eleven billion, one hundred one million, twenty-two thousand, twenty-two".