10120224402 has 72 divisors (see below), whose sum is σ = 22900518732. Its totient is φ = 3353983200.

The previous prime is 10120224377. The next prime is 10120224407. The reversal of 10120224402 is 20442202101.

It can be written as a sum of positive squares in 2 ways, for example, as 10104471441 + 15752961 = 100521^2 + 3969^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10120224407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2372952 + ... + 2377212.

Almost surely, 2^10120224402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10120224402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11450259366).

10120224402 is an abundant number, since it is smaller than the sum of its proper divisors (12780294330).

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

10120224402 is an frugal number, since it uses more digits than its factorization.

10120224402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468 (or 4447 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 10120224402 its reverse (20442202101), we get a palindrome (30562426503).

The spelling of 10120224402 in words is "ten billion, one hundred twenty million, two hundred twenty-four thousand, four hundred two".