111022220111021 has 8 divisors (see below), whose sum is σ = 111084388142784. Its totient is φ = 110960056920960.

The previous prime is 111022220110981. The next prime is 111022220111119. The reversal of 111022220111021 is 120111022220111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111022220111021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022220111221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45160061 + ... + 47554973.

It is an arithmetic number, because the mean of its divisors is an integer number (13885548517848).

Almost surely, 2^{111022220111021} is an apocalyptic number.

It is an amenable number.

111022220111021 is a deficient number, since it is larger than the sum of its proper divisors (62168031763).

111022220111021 is a wasteful number, since it uses less digits than its factorization.

111022220111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420851.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111022220111021 its reverse (120111022220111), we get a palindrome (231133242331132).

The spelling of 111022220111021 in words is "one hundred eleven trillion, twenty-two billion, two hundred twenty million, one hundred eleven thousand, twenty-one".