1102020000221 has 4 divisors (see below), whose sum is σ = 1259451428832. Its totient is φ = 944588571612.

The previous prime is 1102020000199. The next prime is 1102020000269. The reversal of 1102020000221 is 1220000202011.

It is a happy number.

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 not a de Polignac number, because 1102020000221 - 2¹⁴ = 1102019983837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102020000271) 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, 78715714295 + ... + 78715714308.

It is an arithmetic number, because the mean of its divisors is an integer number (314862857208).

Almost surely, 2^{1102020000221} is an apocalyptic number.

It is an amenable number.

1102020000221 is a deficient number, since it is larger than the sum of its proper divisors (157431428611).

1102020000221 is an equidigital number, since it uses as much as digits as its factorization.

1102020000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157431428610.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1102020000221 its reverse (1220000202011), we get a palindrome (2322020202232).

The spelling of 1102020000221 in words is "one trillion, one hundred two billion, twenty million, two hundred twenty-one", and thus it is an aban number.