10121223294 has 160 divisors (see below), whose sum is σ = 28814370816. Its totient is φ = 2583109440.

The previous prime is 10121223293. The next prime is 10121223323. The reversal of 10121223294 is 49232212101.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121223293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 445929 + ... + 468075.

Almost surely, 2^10121223294 is an apocalyptic number.

10121223294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10121223294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14407185408).

10121223294 is an abundant number, since it is smaller than the sum of its proper divisors (18693147522).

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

10121223294 is a wasteful number, since it uses less digits than its factorization.

10121223294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22212 (or 22203 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 10121223294 its reverse (49232212101), we get a palindrome (59353435395).

The spelling of 10121223294 in words is "ten billion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred ninety-four".