1122221220101 has 4 divisors (see below), whose sum is σ = 1122425898432. Its totient is φ = 1122016541772.

The previous prime is 1122221220061. The next prime is 1122221220121. The reversal of 1122221220101 is 1010221222211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1122221220101 - 2⁶ = 1122221220037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122221220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122221220121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102330941 + ... + 102341906.

It is an arithmetic number, because the mean of its divisors is an integer number (280606474608).

Almost surely, 2^{1122221220101} is an apocalyptic number.

It is an amenable number.

1122221220101 is a deficient number, since it is larger than the sum of its proper divisors (204678331).

1122221220101 is an equidigital number, since it uses as much as digits as its factorization.

1122221220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204678330.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1122221220101 its reverse (1010221222211), we get a palindrome (2132442442312).

The spelling of 1122221220101 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, one hundred one".