1102021221021 has 16 divisors (see below), whose sum is σ = 1679294206464. Its totient is φ = 629717496624.

The previous prime is 1102021221017. The next prime is 1102021221029. The reversal of 1102021221021 is 1201221202011.

It is not a de Polignac number, because 1102021221021 - 2² = 1102021221017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102021221029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1327950 + ... + 1991856.

It is an arithmetic number, because the mean of its divisors is an integer number (104955887904).

Almost surely, 2^{1102021221021} is an apocalyptic number.

It is an amenable number.

1102021221021 is a deficient number, since it is larger than the sum of its proper divisors (577272985443).

1102021221021 is an equidigital number, since it uses as much as digits as its factorization.

1102021221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742960.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1102021221021 its reverse (1201221202011), we get a palindrome (2303242423032).

The spelling of 1102021221021 in words is "one trillion, one hundred two billion, twenty-one million, two hundred twenty-one thousand, twenty-one".