1101220000221 has 32 divisors (see below), whose sum is σ = 1654343336448. Its totient is φ = 645792517440.

The previous prime is 1101220000213. The next prime is 1101220000249. The reversal of 1101220000221 is 1220000221011.

It is not a de Polignac number, because 1101220000221 - 2³ = 1101220000213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101220000197 and 1101220000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101220000271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3474586 + ... + 3778251.

It is an arithmetic number, because the mean of its divisors is an integer number (51698229264).

Almost surely, 2^{1101220000221} is an apocalyptic number.

1101220000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101220000221 is a deficient number, since it is larger than the sum of its proper divisors (553123336227).

1101220000221 is a wasteful number, since it uses less digits than its factorization.

1101220000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7253001.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1101220000221 its reverse (1220000221011), we get a palindrome (2321220221232).

The spelling of 1101220000221 in words is "one trillion, one hundred one billion, two hundred twenty million, two hundred twenty-one", and thus it is an aban number.