212111012302122 has 64 divisors (see below), whose sum is σ = 436488748536960. Its totient is φ = 68674484275200.

The previous prime is 212111012302099. The next prime is 212111012302181. The reversal of 212111012302122 is 221203210111212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1255656738 + ... + 1255825650.

It is an arithmetic number, because the mean of its divisors is an integer number (6820136695890).

Almost surely, 2^{212111012302122} is an apocalyptic number.

212111012302122 is an abundant number, since it is smaller than the sum of its proper divisors (224377736234838).

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

212111012302122 is a wasteful number, since it uses less digits than its factorization.

212111012302122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191479.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 212111012302122 its reverse (221203210111212), we get a palindrome (433314222413334).

The spelling of 212111012302122 in words is "two hundred twelve trillion, one hundred eleven billion, twelve million, three hundred two thousand, one hundred twenty-two".