1102220101021 has 4 divisors (see below), whose sum is σ = 1187006262652. Its totient is φ = 1017433939392.

The previous prime is 1102220100953. The next prime is 1102220101049. The reversal of 1102220101021 is 1201010222011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 253769100025 + 848451000996 = 503755^2 + 921114^2 .

It is not a de Polignac number, because 1102220101021 - 2¹³ = 1102220092829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 84786161617 = 1102220101021 / (1 + 1 + 0 + 2 + 2 + 2 + 0 + 1 + 0 + 1 + 0 + 2 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102220100992 and 1102220101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102220101421) 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, 42393080796 + ... + 42393080821.

It is an arithmetic number, because the mean of its divisors is an integer number (296751565663).

Almost surely, 2^{1102220101021} is an apocalyptic number.

It is an amenable number.

1102220101021 is a deficient number, since it is larger than the sum of its proper divisors (84786161631).

1102220101021 is an equidigital number, since it uses as much as digits as its factorization.

1102220101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84786161630.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1102220101021 its reverse (1201010222011), we get a palindrome (2303230323032).

The spelling of 1102220101021 in words is "one trillion, one hundred two billion, two hundred twenty million, one hundred one thousand, twenty-one".