101221203 has 8 divisors (see below), whose sum is σ = 135464400. Its totient is φ = 67229408.

The previous prime is 101221201. The next prime is 101221259. The reversal of 101221203 is 302122101.

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 101221203 - 2¹ = 101221201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101221201) 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, 61908 + ... + 63521.

It is an arithmetic number, because the mean of its divisors is an integer number (16933050).

Almost surely, 2^101221203 is an apocalyptic number.

101221203 is a deficient number, since it is larger than the sum of its proper divisors (34243197).

101221203 is a wasteful number, since it uses less digits than its factorization.

101221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125701.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 101221203 is about 10060.8748625554. The cubic root of 101221203 is about 466.0406845554.

Adding to 101221203 its reverse (302122101), we get a palindrome (403343304).

It can be divided in two parts, 10122 and 1203, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 101221203 in words is "one hundred one million, two hundred twenty-one thousand, two hundred three".