101020022221 has 8 divisors (see below), whose sum is σ = 103491965304. Its totient is φ = 98548462080.

The previous prime is 101020022219. The next prime is 101020022231. The reversal of 101020022221 is 122220020101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1445064196 + 99574958025 = 38014^2 + 315555^2 .

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 101020022221 - 2¹ = 101020022219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020022231) 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, 480181 + ... + 657733.

It is an arithmetic number, because the mean of its divisors is an integer number (12936495663).

Almost surely, 2^101020022221 is an apocalyptic number.

It is an amenable number.

101020022221 is a deficient number, since it is larger than the sum of its proper divisors (2471943083).

101020022221 is a wasteful number, since it uses less digits than its factorization.

101020022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191471.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 101020022221 its reverse (122220020101), we get a palindrome (223240042322).

The spelling of 101020022221 in words is "one hundred one billion, twenty million, twenty-two thousand, two hundred twenty-one".