1302220102440 has 128 divisors (see below), whose sum is σ = 3987019324800. Its totient is φ = 340157583360.

The previous prime is 1302220102409. The next prime is 1302220102471. The reversal of 1302220102440 is 442010222031.

It is an interprime number because it is at equal distance from previous prime (1302220102409) and next prime (1302220102471).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1662204 + ... + 2316756.

It is an arithmetic number, because the mean of its divisors is an integer number (31148588475).

Almost surely, 2^{1302220102440} is an apocalyptic number.

1302220102440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1302220102440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993509662400).

1302220102440 is an abundant number, since it is smaller than the sum of its proper divisors (2684799222360).

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

1302220102440 is a wasteful number, since it uses less digits than its factorization.

1302220102440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654907 (or 654903 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1302220102440 its reverse (442010222031), we get a palindrome (1744230324471).

The spelling of 1302220102440 in words is "one trillion, three hundred two billion, two hundred twenty million, one hundred two thousand, four hundred forty".