1021222201001 has 32 divisors (see below), whose sum is σ = 1074102301440. Its totient is φ = 970054272000.

The previous prime is 1021222200959. The next prime is 1021222201031. The reversal of 1021222201001 is 1001022221201.

It is a cyclic number.

It is not a de Polignac number, because 1021222201001 - 2²⁶ = 1021155092137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021222201031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179505365 + ... + 179511053.

It is an arithmetic number, because the mean of its divisors is an integer number (33565696920).

Almost surely, 2^{1021222201001} is an apocalyptic number.

It is an amenable number.

1021222201001 is a deficient number, since it is larger than the sum of its proper divisors (52880100439).

1021222201001 is a wasteful number, since it uses less digits than its factorization.

1021222201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6545.

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

Adding to 1021222201001 its reverse (1001022221201), we get a palindrome (2022244422202).

The spelling of 1021222201001 in words is "one trillion, twenty-one billion, two hundred twenty-two million, two hundred one thousand, one".