1421243334225 has 72 divisors (see below), whose sum is σ = 2990640586752. Its totient is φ = 636080918400.

The previous prime is 1421243334223. The next prime is 1421243334227. The reversal of 1421243334225 is 5224333421241.

1421243334225 is a `hidden beast` number, since 1 + 4 + 212 + 433 + 3 + 4 + 2 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1421243334223) and next prime (1421243334227).

It is not a de Polignac number, because 1421243334225 - 2¹ = 1421243334223 is a prime.

It is a super-3 number, since 3×1421243334225³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1421243334225.

It is not an unprimeable number, because it can be changed into a prime (1421243334221) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 22053969 + ... + 22118318.

It is an arithmetic number, because the mean of its divisors is an integer number (41536674816).

Almost surely, 2^{1421243334225} is an apocalyptic number.

1421243334225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1421243334225 is an abundant number, since it is smaller than the sum of its proper divisors (1569397252527).

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

1421243334225 is a wasteful number, since it uses less digits than its factorization.

1421243334225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44172327 (or 44172319 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

Adding to 1421243334225 its reverse (5224333421241), we get a palindrome (6645576755466).

The spelling of 1421243334225 in words is "one trillion, four hundred twenty-one billion, two hundred forty-three million, three hundred thirty-four thousand, two hundred twenty-five".