212215016102 has 4 divisors (see below), whose sum is σ = 318322524156. Its totient is φ = 106107508050.

The previous prime is 212215016089. The next prime is 212215016107. The reversal of 212215016102 is 201610512212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212215016107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53053754024 + ... + 53053754027.

It is an arithmetic number, because the mean of its divisors is an integer number (79580631039).

Almost surely, 2^212215016102 is an apocalyptic number.

212215016102 is a deficient number, since it is larger than the sum of its proper divisors (106107508054).

212215016102 is a wasteful number, since it uses less digits than its factorization.

212215016102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106107508053.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 212215016102 its reverse (201610512212), we get a palindrome (413825528314).

The spelling of 212215016102 in words is "two hundred twelve billion, two hundred fifteen million, sixteen thousand, one hundred two".