1002121100101 has 4 divisors (see below), whose sum is σ = 1093223018304. Its totient is φ = 911019181900.

The previous prime is 1002121100081. The next prime is 1002121100111. The reversal of 1002121100101 is 1010011212001.

1002121100101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1002121100101 - 2¹⁷ = 1002120969029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002121100111) 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, 45550959085 + ... + 45550959106.

It is an arithmetic number, because the mean of its divisors is an integer number (273305754576).

Almost surely, 2^{1002121100101} is an apocalyptic number.

1002121100101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002121100101 is a deficient number, since it is larger than the sum of its proper divisors (91101918203).

1002121100101 is an equidigital number, since it uses as much as digits as its factorization.

1002121100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91101918202.

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

Adding to 1002121100101 its reverse (1010011212001), we get a palindrome (2012132312102).

The spelling of 1002121100101 in words is "one trillion, two billion, one hundred twenty-one million, one hundred thousand, one hundred one".