1001212210101 has 64 divisors (see below), whose sum is σ = 1486476230400. Its totient is φ = 596842960896.

The previous prime is 1001212210099. The next prime is 1001212210171. The reversal of 1001212210101 is 1010122121001.

It is not a de Polignac number, because 1001212210101 - 2¹ = 1001212210099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001212210171) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24247065 + ... + 24288321.

It is an arithmetic number, because the mean of its divisors is an integer number (23226191100).

Almost surely, 2^{1001212210101} is an apocalyptic number.

It is an amenable number.

1001212210101 is a deficient number, since it is larger than the sum of its proper divisors (485264020299).

1001212210101 is a wasteful number, since it uses less digits than its factorization.

1001212210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41638.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1001212210101 its reverse (1010122121001), we get a palindrome (2011334331102).

The spelling of 1001212210101 in words is "one trillion, one billion, two hundred twelve million, two hundred ten thousand, one hundred one".