1022210121901 has 2 divisors, whose sum is σ = 1022210121902. Its totient is φ = 1022210121900.

The previous prime is 1022210121893. The next prime is 1022210121923. The reversal of 1022210121901 is 1091210122201.

It is an a-pointer prime, because the next prime (1022210121923) can be obtained adding 1022210121901 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 701289004900 + 320921117001 = 837430^2 + 566499^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022210121901 - 2³ = 1022210121893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022210121991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511105060950 + 511105060951.

It is an arithmetic number, because the mean of its divisors is an integer number (511105060951).

Almost surely, 2^{1022210121901} is an apocalyptic number.

It is an amenable number.

1022210121901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022210121901 is an equidigital number, since it uses as much as digits as its factorization.

1022210121901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 1022210121901 in words is "one trillion, twenty-two billion, two hundred ten million, one hundred twenty-one thousand, nine hundred one".