1204221143151 has 12 divisors (see below), whose sum is σ = 1873232889528. Its totient is φ = 741059164944.

The previous prime is 1204221143143. The next prime is 1204221143201. The reversal of 1204221143151 is 1513411224021.

1204221143151 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 221 + 1 + 431 + 5 + 1 = 666.

It is not a de Polignac number, because 1204221143151 - 2³ = 1204221143143 is a prime.

It is a super-2 number, since 2×1204221143151² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204221143131) 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, 5146244085 + ... + 5146244318.

It is an arithmetic number, because the mean of its divisors is an integer number (156102740794).

Almost surely, 2^{1204221143151} is an apocalyptic number.

1204221143151 is a deficient number, since it is larger than the sum of its proper divisors (669011746377).

1204221143151 is a wasteful number, since it uses less digits than its factorization.

1204221143151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292488422 (or 10292488419 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 1204221143151 its reverse (1513411224021), we get a palindrome (2717632367172).

The spelling of 1204221143151 in words is "one trillion, two hundred four billion, two hundred twenty-one million, one hundred forty-three thousand, one hundred fifty-one".