1021101201001 has 16 divisors (see below), whose sum is σ = 1171241683200. Its totient is φ = 872032186368.

The previous prime is 1021101200971. The next prime is 1021101201007. The reversal of 1021101201001 is 1001021011201.

It is not a de Polignac number, because 1021101201001 - 2²³ = 1021092812393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021101201007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2721285 + ... + 3073693.

It is an arithmetic number, because the mean of its divisors is an integer number (73202605200).

Almost surely, 2^{1021101201001} is an apocalyptic number.

It is an amenable number.

1021101201001 is a deficient number, since it is larger than the sum of its proper divisors (150140482199).

1021101201001 is a wasteful number, since it uses less digits than its factorization.

1021101201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353928.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1021101201001 its reverse (1001021011201), we get a palindrome (2022122212202).

The spelling of 1021101201001 in words is "one trillion, twenty-one billion, one hundred one million, two hundred one thousand, one".