1210222002440 has 64 divisors (see below), whose sum is σ = 2971694200320. Its totient is φ = 439910464000.

The previous prime is 1210222002421. The next prime is 1210222002443. The reversal of 1210222002440 is 442002220121.

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

It is not an unprimeable number, because it can be changed into a prime (1210222002443) 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, 609260 + ... + 1670820.

It is an arithmetic number, because the mean of its divisors is an integer number (46432721880).

Almost surely, 2^{1210222002440} is an apocalyptic number.

1210222002440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210222002440 is an abundant number, since it is smaller than the sum of its proper divisors (1761472197880).

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

1210222002440 is a wasteful number, since it uses less digits than its factorization.

1210222002440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064174 (or 1064170 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1210222002440 its reverse (442002220121), we get a palindrome (1652224222561).

The spelling of 1210222002440 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, two thousand, four hundred forty".