20110222120057 has 2 divisors, whose sum is σ = 20110222120058. Its totient is φ = 20110222120056.

The previous prime is 20110222120013. The next prime is 20110222120139. The reversal of 20110222120057 is 75002122201102.

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., 19737663258681 + 372558861376 = 4442709^2 + 610376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20110222120057 is a prime.

It is not a weakly prime, because it can be changed into another prime (20110222129057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055111060028 + 10055111060029.

It is an arithmetic number, because the mean of its divisors is an integer number (10055111060029).

Almost surely, 2^{20110222120057} is an apocalyptic number.

It is an amenable number.

20110222120057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110222120057 is an equidigital number, since it uses as much as digits as its factorization.

20110222120057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 20110222120057 its reverse (75002122201102), we get a palindrome (95112344321159).

The spelling of 20110222120057 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, one hundred twenty thousand, fifty-seven".