212115142402 has 16 divisors (see below), whose sum is σ = 322208979840. Its totient is φ = 104719287232.

The previous prime is 212115142399. The next prime is 212115142403. The reversal of 212115142402 is 204241511212.

It is not an unprimeable number, because it can be changed into a prime (212115142403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1724902 + ... + 1843777.

It is an arithmetic number, because the mean of its divisors is an integer number (20138061240).

Almost surely, 2^212115142402 is an apocalyptic number.

212115142402 is a deficient number, since it is larger than the sum of its proper divisors (110093837438).

212115142402 is a wasteful number, since it uses less digits than its factorization.

212115142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569057.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 212115142402 its reverse (204241511212), we get a palindrome (416356653614).

The spelling of 212115142402 in words is "two hundred twelve billion, one hundred fifteen million, one hundred forty-two thousand, four hundred two".