212122120202212 has 72 divisors (see below), whose sum is σ = 415620016479360. Its totient is φ = 94641717297600.

The previous prime is 212122120202137. The next prime is 212122120202263. The reversal of 212122120202212 is 212202021221212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13143964 + ... + 24433747.

It is an arithmetic number, because the mean of its divisors is an integer number (5772500228880).

Almost surely, 2^{212122120202212} is an apocalyptic number.

212122120202212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212122120202212 is a deficient number, since it is larger than the sum of its proper divisors (203497896277148).

212122120202212 is a wasteful number, since it uses less digits than its factorization.

212122120202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37577953 (or 37577940 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 212122120202212 its reverse (212202021221212), we get a palindrome (424324141423424).

The spelling of 212122120202212 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred twenty million, two hundred two thousand, two hundred twelve".