1021201201101 has 4 divisors (see below), whose sum is σ = 1361601601472. Its totient is φ = 680800800732.

The previous prime is 1021201201087. The next prime is 1021201201121. The reversal of 1021201201101 is 1011021021201.

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 not a de Polignac number, because 1021201201101 - 2¹³ = 1021201192909 is a prime.

It is a super-2 number, since 2×1021201201101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021201201121) 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, 170200200181 + ... + 170200200186.

It is an arithmetic number, because the mean of its divisors is an integer number (340400400368).

Almost surely, 2^{1021201201101} is an apocalyptic number.

It is an amenable number.

1021201201101 is a deficient number, since it is larger than the sum of its proper divisors (340400400371).

1021201201101 is an equidigital number, since it uses as much as digits as its factorization.

1021201201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340400400370.

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

Adding to 1021201201101 its reverse (1011021021201), we get a palindrome (2032222222302).

The spelling of 1021201201101 in words is "one trillion, twenty-one billion, two hundred one million, two hundred one thousand, one hundred one".