101033201221 has 4 divisors (see below), whose sum is σ = 101214589932. Its totient is φ = 100851812512.

The previous prime is 101033201219. The next prime is 101033201237. The reversal of 101033201221 is 122102330101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122102330101 = 4889 ⋅24974909.

It can be written as a sum of positive squares in 2 ways, for example, as 44358256996 + 56674944225 = 210614^2 + 238065^2 .

It is a cyclic number.

It is not a de Polignac number, because 101033201221 - 2¹ = 101033201219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101033201195 and 101033201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101033201281) 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, 90693520 + ... + 90694633.

It is an arithmetic number, because the mean of its divisors is an integer number (25303647483).

Almost surely, 2^101033201221 is an apocalyptic number.

It is an amenable number.

101033201221 is a deficient number, since it is larger than the sum of its proper divisors (181388711).

101033201221 is an equidigital number, since it uses as much as digits as its factorization.

101033201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181388710.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 101033201221 its reverse (122102330101), we get a palindrome (223135531322).

The spelling of 101033201221 in words is "one hundred one billion, thirty-three million, two hundred one thousand, two hundred twenty-one".