1042500220551 has 12 divisors (see below), whose sum is σ = 1512134214240. Its totient is φ = 692092195200.

The previous prime is 1042500220523. The next prime is 1042500220577. The reversal of 1042500220551 is 1550220052401.

1042500220551 is a `hidden beast` number, since 1 + 0 + 42 + 50 + 0 + 2 + 20 + 551 = 666.

It is not a de Polignac number, because 1042500220551 - 2²⁵ = 1042466666119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042500224551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242327050 + ... + 242331351.

It is an arithmetic number, because the mean of its divisors is an integer number (126011184520).

Almost surely, 2^{1042500220551} is an apocalyptic number.

1042500220551 is a deficient number, since it is larger than the sum of its proper divisors (469633993689).

1042500220551 is a wasteful number, since it uses less digits than its factorization.

1042500220551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484658646 (or 484658643 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 1042500220551 its reverse (1550220052401), we get a palindrome (2592720272952).

The spelling of 1042500220551 in words is "one trillion, forty-two billion, five hundred million, two hundred twenty thousand, five hundred fifty-one".