10221201001 has 16 divisors (see below), whose sum is σ = 11266864128. Its totient is φ = 9195139600.

The previous prime is 10221200999. The next prime is 10221201019. The reversal of 10221201001 is 10010212201.

It is a cyclic number.

It is not a de Polignac number, because 10221201001 - 2¹ = 10221200999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221201101) 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, 1209276 + ... + 1217698.

It is an arithmetic number, because the mean of its divisors is an integer number (704179008).

Almost surely, 2^10221201001 is an apocalyptic number.

10221201001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10221201001 is a deficient number, since it is larger than the sum of its proper divisors (1045663127).

10221201001 is a wasteful number, since it uses less digits than its factorization.

10221201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9572.

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

Adding to 10221201001 its reverse (10010212201), we get a palindrome (20231413202).

The spelling of 10221201001 in words is "ten billion, two hundred twenty-one million, two hundred one thousand, one".