142212210 has 96 divisors (see below), whose sum is σ = 401863680. Its totient is φ = 32110848.

The previous prime is 142212199. The next prime is 142212233. The reversal of 142212210 is 12212241.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 142212210.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130287 + ... + 131373.

It is an arithmetic number, because the mean of its divisors is an integer number (4186080).

Almost surely, 2^142212210 is an apocalyptic number.

142212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142212210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200931840).

142212210 is an abundant number, since it is smaller than the sum of its proper divisors (259651470).

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

142212210 is a wasteful number, since it uses less digits than its factorization.

142212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1193 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 142212210 is about 11925.2760974327. The cubic root of 142212210 is about 521.9701029544.

Adding to 142212210 its reverse (12212241), we get a palindrome (154424451).

The spelling of 142212210 in words is "one hundred forty-two million, two hundred twelve thousand, two hundred ten".