10101221111001 has 8 divisors (see below), whose sum is σ = 13832302782784. Its totient is φ = 6552143423280.

The previous prime is 10101221110999. The next prime is 10101221111017. The reversal of 10101221111001 is 10011112210101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10101221111001 - 2¹ = 10101221110999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10101221112001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45500995885 + ... + 45500996106.

It is an arithmetic number, because the mean of its divisors is an integer number (1729037847848).

Almost surely, 2^{10101221111001} is an apocalyptic number.

It is an amenable number.

10101221111001 is a deficient number, since it is larger than the sum of its proper divisors (3731081671783).

10101221111001 is an equidigital number, since it uses as much as digits as its factorization.

10101221111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91001992031.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 10101221111001 its reverse (10011112210101), we get a palindrome (20112333321102).

The spelling of 10101221111001 in words is "ten trillion, one hundred one billion, two hundred twenty-one million, one hundred eleven thousand, one".