20110221083 has 2 divisors, whose sum is σ = 20110221084. Its totient is φ = 20110221082.

The previous prime is 20110221059. The next prime is 20110221127. The reversal of 20110221083 is 38012201102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20110221083 - 2⁸ = 20110220827 is a prime.

It is not a weakly prime, because it can be changed into another prime (20110221023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055110541 + 10055110542.

It is an arithmetic number, because the mean of its divisors is an integer number (10055110542).

Almost surely, 2^20110221083 is an apocalyptic number.

20110221083 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110221083 is an equidigital number, since it uses as much as digits as its factorization.

20110221083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20110221083 its reverse (38012201102), we get a palindrome (58122422185).

The spelling of 20110221083 in words is "twenty billion, one hundred ten million, two hundred twenty-one thousand, eighty-three".