101020012221 has 8 divisors (see below), whose sum is σ = 134696182464. Its totient is φ = 67345258400.

The previous prime is 101020012211. The next prime is 101020012267. The reversal of 101020012221 is 122210020101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101020012221 - 2¹¹ = 101020010173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101020012197 and 101020012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020012211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174705 + ... + 482246.

It is an arithmetic number, because the mean of its divisors is an integer number (16837022808).

Almost surely, 2^101020012221 is an apocalyptic number.

It is an amenable number.

101020012221 is a deficient number, since it is larger than the sum of its proper divisors (33676170243).

101020012221 is an equidigital number, since it uses as much as digits as its factorization.

101020012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708211.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101020012221 its reverse (122210020101), we get a palindrome (223230032322).

The spelling of 101020012221 in words is "one hundred one billion, twenty million, twelve thousand, two hundred twenty-one".