10213122440 has 32 divisors (see below), whose sum is σ = 24188976000. Its totient is φ = 3870235584.

The previous prime is 10213122433. The next prime is 10213122461. The reversal of 10213122440 is 4422131201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6718400 + ... + 6719919.

It is an arithmetic number, because the mean of its divisors is an integer number (755905500).

Almost surely, 2^10213122440 is an apocalyptic number.

10213122440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10213122440 is an abundant number, since it is smaller than the sum of its proper divisors (13975853560).

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

10213122440 is a wasteful number, since it uses less digits than its factorization.

10213122440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438349 (or 13438345 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10213122440 its reverse (4422131201), we get a palindrome (14635253641).

The spelling of 10213122440 in words is "ten billion, two hundred thirteen million, one hundred twenty-two thousand, four hundred forty".