1022201010001 has 4 divisors (see below), whose sum is σ = 1026664770100. Its totient is φ = 1017737249904.

The previous prime is 1022201009993. The next prime is 1022201010011. The reversal of 1022201010001 is 1000101022201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 919535237776 + 102665772225 = 958924^2 + 320415^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022201010001 - 2³ = 1022201009993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022201010001.

It is not an unprimeable number, because it can be changed into a prime (1022201010011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2231879706 + ... + 2231880163.

It is an arithmetic number, because the mean of its divisors is an integer number (256666192525).

Almost surely, 2^{1022201010001} is an apocalyptic number.

It is an amenable number.

1022201010001 is a deficient number, since it is larger than the sum of its proper divisors (4463760099).

1022201010001 is an equidigital number, since it uses as much as digits as its factorization.

1022201010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463760098.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1022201010001 its reverse (1000101022201), we get a palindrome (2022302032202).

The spelling of 1022201010001 in words is "one trillion, twenty-two billion, two hundred one million, ten thousand, one".