10221123000 has 128 divisors (see below), whose sum is σ = 34789098240. Its totient is φ = 2477840000.

The previous prime is 10221122999. The next prime is 10221123023. The reversal of 10221123000 is 32112201.

It is a super-2 number, since 2×10221123000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121866 + ... + 187865.

It is an arithmetic number, because the mean of its divisors is an integer number (271789830).

Almost surely, 2^10221123000 is an apocalyptic number.

10221123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221123000 is an abundant number, since it is smaller than the sum of its proper divisors (24567975240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221123000 is a wasteful number, since it uses less digits than its factorization.

10221123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309766 (or 309752 counting only the distinct ones).

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

Adding to 10221123000 its reverse (32112201), we get a palindrome (10253235201).

The spelling of 10221123000 in words is "ten billion, two hundred twenty-one million, one hundred twenty-three thousand".