101221465 has 8 divisors (see below), whose sum is σ = 122601600. Its totient is φ = 80219952.

The previous prime is 101221447. The next prime is 101221469. The reversal of 101221465 is 564122101.

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 101221465 - 2²¹ = 99124313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101221469) 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, 94065 + ... + 95134.

It is an arithmetic number, because the mean of its divisors is an integer number (15325200).

Almost surely, 2^101221465 is an apocalyptic number.

It is an amenable number.

101221465 is a deficient number, since it is larger than the sum of its proper divisors (21380135).

101221465 is a wasteful number, since it uses less digits than its factorization.

101221465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189311.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 101221465 is about 10060.8878832835. The cubic root of 101221465 is about 466.0410866534.

Adding to 101221465 its reverse (564122101), we get a palindrome (665343566).

The spelling of 101221465 in words is "one hundred one million, two hundred twenty-one thousand, four hundred sixty-five".