1012220025245 has 144 divisors (see below), whose sum is σ = 1511767333440. Its totient is φ = 644875545600.

The previous prime is 1012220025233. The next prime is 1012220025247. The reversal of 1012220025245 is 5425200222101.

It is not a de Polignac number, because 1012220025245 - 2¹⁴ = 1012220008861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012220025247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 683469905 + ... + 683471385.

It is an arithmetic number, because the mean of its divisors is an integer number (10498384260).

Almost surely, 2^{1012220025245} is an apocalyptic number.

It is an amenable number.

1012220025245 is a deficient number, since it is larger than the sum of its proper divisors (499547308195).

1012220025245 is a wasteful number, since it uses less digits than its factorization.

1012220025245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 1012220025245 its reverse (5425200222101), we get a palindrome (6437420247346).

The spelling of 1012220025245 in words is "one trillion, twelve billion, two hundred twenty million, twenty-five thousand, two hundred forty-five".