2021220022201 has 2 divisors, whose sum is σ = 2021220022202. Its totient is φ = 2021220022200.

The previous prime is 2021220022169. The next prime is 2021220022219. The reversal of 2021220022201 is 1022200221202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1977120022201 + 44100000000 = 1406101^2 + 210000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021220022201 - 2⁵ = 2021220022169 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021220022291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010610011100 + 1010610011101.

It is an arithmetic number, because the mean of its divisors is an integer number (1010610011101).

Almost surely, 2^{2021220022201} is an apocalyptic number.

It is an amenable number.

2021220022201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021220022201 is an equidigital number, since it uses as much as digits as its factorization.

2021220022201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2021220022201 its reverse (1022200221202), we get a palindrome (3043420243403).

The spelling of 2021220022201 in words is "two trillion, twenty-one billion, two hundred twenty million, twenty-two thousand, two hundred one".