122111021121212 has 6 divisors (see below), whose sum is σ = 213694286962128. Its totient is φ = 61055510560604.

The previous prime is 122111021121203. The next prime is 122111021121301. The reversal of 122111021121212 is 212121120111221.

It is a happy number.

It is a super-2 number, since 2×122111021121212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15263877640148 + ... + 15263877640155.

It is an arithmetic number, because the mean of its divisors is an integer number (35615714493688).

Almost surely, 2^{122111021121212} is an apocalyptic number.

It is an amenable number.

122111021121212 is a deficient number, since it is larger than the sum of its proper divisors (91583265840916).

122111021121212 is a wasteful number, since it uses less digits than its factorization.

122111021121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30527755280307 (or 30527755280305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 122111021121212 its reverse (212121120111221), we get a palindrome (334232141232433).

The spelling of 122111021121212 in words is "one hundred twenty-two trillion, one hundred eleven billion, twenty-one million, one hundred twenty-one thousand, two hundred twelve".