1122100201021 has 2 divisors, whose sum is σ = 1122100201022. Its totient is φ = 1122100201020.

The previous prime is 1122100201007. The next prime is 1122100201037. The reversal of 1122100201021 is 1201020012211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 612753921796 + 509346279225 = 782786^2 + 713685^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122100201021 - 2¹⁵ = 1122100168253 is a prime.

It is a super-2 number, since 2×1122100201021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1122100200992 and 1122100201010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122104201021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561050100510 + 561050100511.

It is an arithmetic number, because the mean of its divisors is an integer number (561050100511).

Almost surely, 2^{1122100201021} is an apocalyptic number.

It is an amenable number.

1122100201021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122100201021 is an equidigital number, since it uses as much as digits as its factorization.

1122100201021 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 13.

Adding to 1122100201021 its reverse (1201020012211), we get a palindrome (2323120213232).

The spelling of 1122100201021 in words is "one trillion, one hundred twenty-two billion, one hundred million, two hundred one thousand, twenty-one".