111021221001022 has 4 divisors (see below), whose sum is σ = 166531831501536. Its totient is φ = 55510610500510.

The previous prime is 111021221001013. The next prime is 111021221001091. The reversal of 111021221001022 is 220100122120111.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 111021221000987 and 111021221001005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27755305250254 + ... + 27755305250257.

It is an arithmetic number, because the mean of its divisors is an integer number (41632957875384).

Almost surely, 2^{111021221001022} is an apocalyptic number.

111021221001022 is a deficient number, since it is larger than the sum of its proper divisors (55510610500514).

111021221001022 is an equidigital number, since it uses as much as digits as its factorization.

111021221001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55510610500513.

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

Adding to 111021221001022 its reverse (220100122120111), we get a palindrome (331121343121133).

The spelling of 111021221001022 in words is "one hundred eleven trillion, twenty-one billion, two hundred twenty-one million, one thousand, twenty-two".