1102221111021 has 16 divisors (see below), whose sum is σ = 1475864467968. Its totient is φ = 731696486400.

The previous prime is 1102221111011. The next prime is 1102221111127. The reversal of 1102221111021 is 1201111222011.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1102221111021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102221111011) 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, 8333476 + ... + 8464706.

It is an arithmetic number, because the mean of its divisors is an integer number (92241529248).

Almost surely, 2^{1102221111021} is an apocalyptic number.

It is an amenable number.

1102221111021 is a deficient number, since it is larger than the sum of its proper divisors (373643356947).

1102221111021 is a wasteful number, since it uses less digits than its factorization.

1102221111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143092.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1102221111021 its reverse (1201111222011), we get a palindrome (2303332333032).

The spelling of 1102221111021 in words is "one trillion, one hundred two billion, two hundred twenty-one million, one hundred eleven thousand, twenty-one".