101220203 has 8 divisors (see below), whose sum is σ = 116374272. Its totient is φ = 86239656.

The previous prime is 101220169. The next prime is 101220233. The reversal of 101220203 is 302022101.

It is a happy number.

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 101220203 - 2¹⁰ = 101219179 is a prime.

It is a super-2 number, since 2×101220203² = 20491058990722418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101220233) 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, 42125 + ... + 44462.

It is an arithmetic number, because the mean of its divisors is an integer number (14546784).

Almost surely, 2^101220203 is an apocalyptic number.

101220203 is a deficient number, since it is larger than the sum of its proper divisors (15154069).

101220203 is an equidigital number, since it uses as much as digits as its factorization.

101220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86761.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 101220203 is about 10060.8251649653. The cubic root of 101220203 is about 466.0391498235.

Adding to 101220203 its reverse (302022101), we get a palindrome (403242304).

The spelling of 101220203 in words is "one hundred one million, two hundred twenty thousand, two hundred three".