1521141122142 has 24 divisors (see below), whose sum is σ = 3296157608016. Its totient is φ = 506992910976.

The previous prime is 1521141122131. The next prime is 1521141122201. The reversal of 1521141122142 is 2412211411251.

It is a happy number.

1521141122142 is a `hidden beast` number, since 1 + 5 + 21 + 1 + 411 + 221 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4337338 + ... + 4674909.

It is an arithmetic number, because the mean of its divisors is an integer number (137339900334).

Almost surely, 2^{1521141122142} is an apocalyptic number.

1521141122142 is an abundant number, since it is smaller than the sum of its proper divisors (1775016485874).

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

1521141122142 is a wasteful number, since it uses less digits than its factorization.

1521141122142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9021632 (or 9021629 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

Adding to 1521141122142 its reverse (2412211411251), we get a palindrome (3933352533393).

The spelling of 1521141122142 in words is "one trillion, five hundred twenty-one billion, one hundred forty-one million, one hundred twenty-two thousand, one hundred forty-two".