1102122110021 has 2 divisors, whose sum is σ = 1102122110022. Its totient is φ = 1102122110020.

The previous prime is 1102122109987. The next prime is 1102122110051. The reversal of 1102122110021 is 1200112212011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1033851736225 + 68270373796 = 1016785^2 + 261286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102122110021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102122109978 and 1102122110005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102122110051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551061055010 + 551061055011.

It is an arithmetic number, because the mean of its divisors is an integer number (551061055011).

Almost surely, 2^{1102122110021} is an apocalyptic number.

It is an amenable number.

1102122110021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102122110021 is an equidigital number, since it uses as much as digits as its factorization.

1102122110021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1102122110021 its reverse (1200112212011), we get a palindrome (2302234322032).

The spelling of 1102122110021 in words is "one trillion, one hundred two billion, one hundred twenty-two million, one hundred ten thousand, twenty-one".