1201120222021 has 2 divisors, whose sum is σ = 1201120222022. Its totient is φ = 1201120222020.

The previous prime is 1201120222013. The next prime is 1201120222069. The reversal of 1201120222021 is 1202220211021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1021777288900 + 179342933121 = 1010830^2 + 423489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201120222021 - 2³ = 1201120222013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201120221986 and 1201120222004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201120222321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600560111010 + 600560111011.

It is an arithmetic number, because the mean of its divisors is an integer number (600560111011).

Almost surely, 2^{1201120222021} is an apocalyptic number.

It is an amenable number.

1201120222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201120222021 is an equidigital number, since it uses as much as digits as its factorization.

1201120222021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1201120222021 its reverse (1202220211021), we get a palindrome (2403340433042).

The spelling of 1201120222021 in words is "one trillion, two hundred one billion, one hundred twenty million, two hundred twenty-two thousand, twenty-one".