101220021203 has 16 divisors (see below), whose sum is σ = 122208088320. Its totient is φ = 81896943456.

The previous prime is 101220021173. The next prime is 101220021223. The reversal of 101220021203 is 302120022101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101220021203 - 2¹⁴ = 101220004819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220021223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1336901 + ... + 1410582.

It is an arithmetic number, because the mean of its divisors is an integer number (7638005520).

Almost surely, 2^101220021203 is an apocalyptic number.

101220021203 is a deficient number, since it is larger than the sum of its proper divisors (20988067117).

101220021203 is a wasteful number, since it uses less digits than its factorization.

101220021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747786.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 101220021203 its reverse (302120022101), we get a palindrome (403340043304).

The spelling of 101220021203 in words is "one hundred one billion, two hundred twenty million, twenty-one thousand, two hundred three".