2142031222 has 4 divisors (see below), whose sum is σ = 3213046836. Its totient is φ = 1071015610.

The previous prime is 2142031217. The next prime is 2142031237. The reversal of 2142031222 is 2221302412.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2142031222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535507804 + ... + 535507807.

It is an arithmetic number, because the mean of its divisors is an integer number (803261709).

Almost surely, 2^2142031222 is an apocalyptic number.

2142031222 is a deficient number, since it is larger than the sum of its proper divisors (1071015614).

2142031222 is a wasteful number, since it uses less digits than its factorization.

2142031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071015613.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2142031222 is about 46282.0831640063. The cubic root of 2142031222 is about 1289.0663319904.

Adding to 2142031222 its reverse (2221302412), we get a palindrome (4363333634).

The spelling of 2142031222 in words is "two billion, one hundred forty-two million, thirty-one thousand, two hundred twenty-two".