1021112212203 has 48 divisors (see below), whose sum is σ = 1523293439616. Its totient is φ = 658768723200.

The previous prime is 1021112212157. The next prime is 1021112212271. The reversal of 1021112212203 is 3022122111201.

1021112212203 is a `hidden beast` number, since 10 + 211 + 1 + 221 + 220 + 3 = 666.

It is not a de Polignac number, because 1021112212203 - 2⁶ = 1021112212139 is a prime.

It is a super-2 number, since 2×1021112212203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021112212273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32325525 + ... + 32357097.

It is an arithmetic number, because the mean of its divisors is an integer number (31735279992).

Almost surely, 2^{1021112212203} is an apocalyptic number.

1021112212203 is a deficient number, since it is larger than the sum of its proper divisors (502181227413).

1021112212203 is a wasteful number, since it uses less digits than its factorization.

1021112212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32484 (or 32481 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1021112212203 its reverse (3022122111201), we get a palindrome (4043234323404).

The spelling of 1021112212203 in words is "one trillion, twenty-one billion, one hundred twelve million, two hundred twelve thousand, two hundred three".