101420221 has 8 divisors (see below), whose sum is σ = 119905920. Its totient is φ = 83933808.

The previous prime is 101420191. The next prime is 101420239. The reversal of 101420221 is 122024101.

It is a happy number.

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

It is not a de Polignac number, because 101420221 - 2⁷ = 101420093 is a prime.

It is a super-2 number, since 2×101420221² = 20572122455377682, which 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 (101420281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249601 + ... + 250006.

It is an arithmetic number, because the mean of its divisors is an integer number (14988240).

Almost surely, 2^101420221 is an apocalyptic number.

It is an amenable number.

101420221 is a deficient number, since it is larger than the sum of its proper divisors (18485699).

101420221 is an equidigital number, since it uses as much as digits as its factorization.

101420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499643.

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

The square root of 101420221 is about 10070.7606961937. The cubic root of 101420221 is about 466.3459228546.

Adding to 101420221 its reverse (122024101), we get a palindrome (223444322).

The spelling of 101420221 in words is "one hundred one million, four hundred twenty thousand, two hundred twenty-one".