20120221010093 has 2 divisors, whose sum is σ = 20120221010094. Its totient is φ = 20120221010092.

The previous prime is 20120221010027. The next prime is 20120221010101. The reversal of 20120221010093 is 39001012202102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19903849045129 + 216371964964 = 4461373^2 + 465158^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120221010093 - 2³⁴ = 20103041140909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120221010003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060110505046 + 10060110505047.

It is an arithmetic number, because the mean of its divisors is an integer number (10060110505047).

Almost surely, 2^{20120221010093} is an apocalyptic number.

It is an amenable number.

20120221010093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120221010093 is an equidigital number, since it uses as much as digits as its factorization.

20120221010093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 20120221010093 its reverse (39001012202102), we get a palindrome (59121233212195).

The spelling of 20120221010093 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-one million, ten thousand, ninety-three".