1242142242210 has 96 divisors (see below), whose sum is σ = 3349539490752. Its totient is φ = 331202727360.

The previous prime is 1242142242203. The next prime is 1242142242241. The reversal of 1242142242210 is 122422412421.

1242142242210 is a `hidden beast` number, since 1 + 2 + 4 + 21 + 422 + 4 + 2 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29398900 + ... + 29441120.

It is an arithmetic number, because the mean of its divisors is an integer number (34891036362).

Almost surely, 2^{1242142242210} is an apocalyptic number.

1242142242210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242142242210 is an abundant number, since it is smaller than the sum of its proper divisors (2107397248542).

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

1242142242210 is a wasteful number, since it uses less digits than its factorization.

1242142242210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54350 (or 54338 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 1242142242210 its reverse (122422412421), we get a palindrome (1364564654631).

The spelling of 1242142242210 in words is "one trillion, two hundred forty-two billion, one hundred forty-two million, two hundred forty-two thousand, two hundred ten".