1002121112201 has 4 divisors (see below), whose sum is σ = 1093223031504. Its totient is φ = 911019192900.

The previous prime is 1002121112147. The next prime is 1002121112231. The reversal of 1002121112201 is 1022111212001.

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 1002121112201 - 2³⁴ = 984941243017 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 (1002121112231) 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, 45550959635 + ... + 45550959656.

It is an arithmetic number, because the mean of its divisors is an integer number (273305757876).

Almost surely, 2^{1002121112201} is an apocalyptic number.

1002121112201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002121112201 is a deficient number, since it is larger than the sum of its proper divisors (91101919303).

1002121112201 is an equidigital number, since it uses as much as digits as its factorization.

1002121112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91101919302.

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

Adding to 1002121112201 its reverse (1022111212001), we get a palindrome (2024232324202).

The spelling of 1002121112201 in words is "one trillion, two billion, one hundred twenty-one million, one hundred twelve thousand, two hundred one".