212122121002 has 64 divisors (see below), whose sum is σ = 375002265600. Its totient is φ = 88969034880.

The previous prime is 212122120979. The next prime is 212122121009. The reversal of 212122121002 is 200121221212.

It is a happy number.

212122121002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212122121009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2449983 + ... + 2535085.

It is an arithmetic number, because the mean of its divisors is an integer number (5859410400).

Almost surely, 2^212122121002 is an apocalyptic number.

212122121002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212122121002 is a deficient number, since it is larger than the sum of its proper divisors (162880144598).

212122121002 is a wasteful number, since it uses less digits than its factorization.

212122121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85291.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212122121002 its reverse (200121221212), we get a palindrome (412243342214).

The spelling of 212122121002 in words is "two hundred twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, two".