201202012021001 has 2 divisors, whose sum is σ = 201202012021002. Its totient is φ = 201202012021000.

The previous prime is 201202012020983. The next prime is 201202012021039. The reversal of 201202012021001 is 100120210202102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129901889297401 + 71300122723600 = 11397451^2 + 8443940^2 .

It is a cyclic number.

It is not a de Polignac number, because 201202012021001 - 2²² = 201202007826697 is a prime.

It is not a weakly prime, because it can be changed into another prime (201202012021091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100601006010500 + 100601006010501.

It is an arithmetic number, because the mean of its divisors is an integer number (100601006010501).

Almost surely, 2^{201202012021001} is an apocalyptic number.

It is an amenable number.

201202012021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201202012021001 is an equidigital number, since it uses as much as digits as its factorization.

201202012021001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201202012021001 its reverse (100120210202102), we get a palindrome (301322222223103).

The spelling of 201202012021001 in words is "two hundred one trillion, two hundred two billion, twelve million, twenty-one thousand, one".