1021301145225 has 144 divisors (see below), whose sum is σ = 1909879468224. Its totient is φ = 521370432000.

The previous prime is 1021301145217. The next prime is 1021301145229. The reversal of 1021301145225 is 5225411031201.

It is a happy number.

1021301145225 is a `hidden beast` number, since 1 + 0 + 2 + 130 + 1 + 1 + 4 + 522 + 5 = 666.

It is not a de Polignac number, because 1021301145225 - 2³ = 1021301145217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021301145229) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 76318035 + ... + 76331415.

Almost surely, 2^{1021301145225} is an apocalyptic number.

1021301145225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1021301145225 is a deficient number, since it is larger than the sum of its proper divisors (888578322999).

1021301145225 is a wasteful number, since it uses less digits than its factorization.

1021301145225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13608 (or 13600 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 1021301145225 its reverse (5225411031201), we get a palindrome (6246712176426).

The spelling of 1021301145225 in words is "one trillion, twenty-one billion, three hundred one million, one hundred forty-five thousand, two hundred twenty-five".