10212021123 has 8 divisors (see below), whose sum is σ = 13624974528. Its totient is φ = 6803540904.

The previous prime is 10212021107. The next prime is 10212021217. The reversal of 10212021123 is 32112021201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10212021123 - 2⁴ = 10212021107 is a prime.

It is a super-2 number, since 2×10212021123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10212021223) 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, 1112965 + ... + 1122102.

It is an arithmetic number, because the mean of its divisors is an integer number (1703121816).

Almost surely, 2^10212021123 is an apocalyptic number.

10212021123 is a deficient number, since it is larger than the sum of its proper divisors (3412953405).

10212021123 is a wasteful number, since it uses less digits than its factorization.

10212021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236593.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10212021123 its reverse (32112021201), we get a palindrome (42324042324).

The spelling of 10212021123 in words is "ten billion, two hundred twelve million, twenty-one thousand, one hundred twenty-three".