221121021083 has 2 divisors, whose sum is σ = 221121021084. Its totient is φ = 221121021082.

The previous prime is 221121021067. The next prime is 221121021131. The reversal of 221121021083 is 380120121122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221121021083 - 2⁴ = 221121021067 is a prime.

It is not a weakly prime, because it can be changed into another prime (221121023083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110560510541 + 110560510542.

It is an arithmetic number, because the mean of its divisors is an integer number (110560510542).

Almost surely, 2^221121021083 is an apocalyptic number.

221121021083 is a deficient number, since it is larger than the sum of its proper divisors (1).

221121021083 is an equidigital number, since it uses as much as digits as its factorization.

221121021083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The spelling of 221121021083 in words is "two hundred twenty-one billion, one hundred twenty-one million, twenty-one thousand, eighty-three".