10101212221001 has 4 divisors (see below), whose sum is σ = 11019504241104. Its totient is φ = 9182920200900.

The previous prime is 10101212220961. The next prime is 10101212221003. The reversal of 10101212221001 is 10012221210101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10101212221001 - 2³⁸ = 9826334314057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10101212221003) 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, 459146010035 + ... + 459146010056.

It is an arithmetic number, because the mean of its divisors is an integer number (2754876060276).

Almost surely, 2^{10101212221001} is an apocalyptic number.

10101212221001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10101212221001 is a deficient number, since it is larger than the sum of its proper divisors (918292020103).

10101212221001 is an equidigital number, since it uses as much as digits as its factorization.

10101212221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918292020102.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10101212221001 its reverse (10012221210101), we get a palindrome (20113433431102).

The spelling of 10101212221001 in words is "ten trillion, one hundred one billion, two hundred twelve million, two hundred twenty-one thousand, one".