1214142020 has 192 divisors, whose sum is σ = 3285950976. Its totient is φ = 366612480.

The previous prime is 1214142019. The next prime is 1214142053. The reversal of 1214142020 is 202414121.

It is a self number, because there is not a number n which added to its sum of digits gives 1214142020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3954707 + ... + 3955013.

It is an arithmetic number, because the mean of its divisors is an integer number (17114328).

Almost surely, 2^1214142020 is an apocalyptic number.

1214142020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214142020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642975488).

1214142020 is an abundant number, since it is smaller than the sum of its proper divisors (2071808956).

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

1214142020 is a wasteful number, since it uses less digits than its factorization.

1214142020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1214142020 is about 34844.5407488749. The cubic root of 1214142020 is about 1066.8167599120.

Adding to 1214142020 its reverse (202414121), we get a palindrome (1416556141).

The spelling of 1214142020 in words is "one billion, two hundred fourteen million, one hundred forty-two thousand, twenty".