101221002002011 has 4 divisors (see below), whose sum is σ = 101221214429224. Its totient is φ = 101220789574800.

The previous prime is 101221002001993. The next prime is 101221002002017. The reversal of 101221002002011 is 110200200122101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101221002002011 - 2⁵ = 101221002001979 is a prime.

It is a super-2 number, since 2×101221002002011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101221002001982 and 101221002002000.

It is not an unprimeable number, because it can be changed into a prime (101221002002017) 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, 105497250 + ... + 106452391.

It is an arithmetic number, because the mean of its divisors is an integer number (25305303607306).

Almost surely, 2^{101221002002011} is an apocalyptic number.

101221002002011 is a deficient number, since it is larger than the sum of its proper divisors (212427213).

101221002002011 is an equidigital number, since it uses as much as digits as its factorization.

101221002002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212427212.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101221002002011 its reverse (110200200122101), we get a palindrome (211421202124112).

The spelling of 101221002002011 in words is "one hundred one trillion, two hundred twenty-one billion, two million, two thousand, eleven".