1142214021556 has 6 divisors (see below), whose sum is σ = 1998874537730. Its totient is φ = 571107010776.

The previous prime is 1142214021527. The next prime is 1142214021593. The reversal of 1142214021556 is 6551204122411.

It can be written as a sum of positive squares in only one way, i.e., 1009353771556 + 132860250000 = 1004666^2 + 364500^2 .

It is a super-2 number, since 2×1142214021556² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142776752691 + ... + 142776752698.

Almost surely, 2^{1142214021556} is an apocalyptic number.

It is an amenable number.

1142214021556 is a deficient number, since it is larger than the sum of its proper divisors (856660516174).

1142214021556 is a wasteful number, since it uses less digits than its factorization.

1142214021556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285553505393 (or 285553505391 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 1142214021556 its reverse (6551204122411), we get a palindrome (7693418143967).

The spelling of 1142214021556 in words is "one trillion, one hundred forty-two billion, two hundred fourteen million, twenty-one thousand, five hundred fifty-six".