1022201001973 has 2 divisors, whose sum is σ = 1022201001974. Its totient is φ = 1022201001972.

The previous prime is 1022201001893. The next prime is 1022201002103. The reversal of 1022201001973 is 3791001022201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 936950433444 + 85250568529 = 967962^2 + 291977^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022201001973 - 2⁹ = 1022201001461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022201001473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511100500986 + 511100500987.

It is an arithmetic number, because the mean of its divisors is an integer number (511100500987).

Almost surely, 2^{1022201001973} is an apocalyptic number.

It is an amenable number.

1022201001973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022201001973 is an equidigital number, since it uses as much as digits as its factorization.

1022201001973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 1022201001973 in words is "one trillion, twenty-two billion, two hundred one million, one thousand, nine hundred seventy-three".