20120220012901 has 2 divisors, whose sum is σ = 20120220012902. Its totient is φ = 20120220012900.

The previous prime is 20120220012881. The next prime is 20120220013021. The reversal of 20120220012901 is 10921002202102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18903277884100 + 1216942128801 = 4347790^2 + 1103151^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120220012901 - 2¹¹ = 20120220010853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120220022901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060110006450 + 10060110006451.

It is an arithmetic number, because the mean of its divisors is an integer number (10060110006451).

Almost surely, 2^{20120220012901} is an apocalyptic number.

It is an amenable number.

20120220012901 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120220012901 is an equidigital number, since it uses as much as digits as its factorization.

20120220012901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 20120220012901 in words is "twenty trillion, one hundred twenty billion, two hundred twenty million, twelve thousand, nine hundred one".