1225005202040 has 64 divisors (see below), whose sum is σ = 2845824572160. Its totient is φ = 474087029760.

The previous prime is 1225005202037. The next prime is 1225005202087. The reversal of 1225005202040 is 402025005221.

It is a super-2 number, since 2×1225005202040² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225005201997 and 1225005202015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5415854 + ... + 5637506.

It is an arithmetic number, because the mean of its divisors is an integer number (44466008940).

Almost surely, 2^{1225005202040} is an apocalyptic number.

1225005202040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225005202040 is an abundant number, since it is smaller than the sum of its proper divisors (1620819370120).

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

1225005202040 is a wasteful number, since it uses less digits than its factorization.

1225005202040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226152 (or 226148 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The spelling of 1225005202040 in words is "one trillion, two hundred twenty-five billion, five million, two hundred two thousand, forty".