1122010111221 has 8 divisors (see below), whose sum is σ = 1496029721760. Its totient is φ = 747998620752.

The previous prime is 1122010111219. The next prime is 1122010111283. The reversal of 1122010111221 is 1221110102211.

It is a happy number.

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

It is not a de Polignac number, because 1122010111221 - 2¹ = 1122010111219 is a prime.

It is a super-2 number, since 2×1122010111221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122010111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122010111921) 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, 1699935 + ... + 2265788.

It is an arithmetic number, because the mean of its divisors is an integer number (187003715220).

Almost surely, 2^{1122010111221} is an apocalyptic number.

It is an amenable number.

1122010111221 is a deficient number, since it is larger than the sum of its proper divisors (374019610539).

1122010111221 is an equidigital number, since it uses as much as digits as its factorization.

1122010111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060035.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1122010111221 its reverse (1221110102211), we get a palindrome (2343120213432).

The spelling of 1122010111221 in words is "one trillion, one hundred twenty-two billion, ten million, one hundred eleven thousand, two hundred twenty-one".