10121155224 has 64 divisors (see below), whose sum is σ = 26817920640. Its totient is φ = 3172108800.

The previous prime is 10121155223. The next prime is 10121155259. The reversal of 10121155224 is 42255112101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 10121155194 and 10121155203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121155223) 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, 417007 + ... + 440609.

It is an arithmetic number, because the mean of its divisors is an integer number (419030010).

Almost surely, 2^10121155224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10121155224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13408960320).

10121155224 is an abundant number, since it is smaller than the sum of its proper divisors (16696765416).

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

10121155224 is a wasteful number, since it uses less digits than its factorization.

10121155224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24680 (or 24676 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 10121155224 its reverse (42255112101), we get a palindrome (52376267325).

The spelling of 10121155224 in words is "ten billion, one hundred twenty-one million, one hundred fifty-five thousand, two hundred twenty-four".