1111121001022 has 4 divisors (see below), whose sum is σ = 1666681501536. Its totient is φ = 555560500510.

The previous prime is 1111121000987. The next prime is 1111121001031. The reversal of 1111121001022 is 2201001211111.

It is a happy number.

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 = 1111121000993 and 1111121001011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277780250254 + ... + 277780250257.

It is an arithmetic number, because the mean of its divisors is an integer number (416670375384).

Almost surely, 2^{1111121001022} is an apocalyptic number.

1111121001022 is a deficient number, since it is larger than the sum of its proper divisors (555560500514).

1111121001022 is an equidigital number, since it uses as much as digits as its factorization.

1111121001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555560500513.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1111121001022 its reverse (2201001211111), we get a palindrome (3312122212133).

The spelling of 1111121001022 in words is "one trillion, one hundred eleven billion, one hundred twenty-one million, one thousand, twenty-two".