122101111221212 has 24 divisors (see below), whose sum is σ = 213766162449840. Its totient is φ = 61025068460160.

The previous prime is 122101111221209. The next prime is 122101111221233. The reversal of 122101111221212 is 212122111101221.

It is a happy number.

It is a super-2 number, since 2×122101111221212² (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 in 7 ways as a sum of consecutive naturals, for example, 135344912 + ... + 136244072.

It is an arithmetic number, because the mean of its divisors is an integer number (8906923435410).

Almost surely, 2^{122101111221212} is an apocalyptic number.

It is an amenable number.

122101111221212 is a deficient number, since it is larger than the sum of its proper divisors (91665051228628).

122101111221212 is a wasteful number, since it uses less digits than its factorization.

122101111221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913301 (or 913299 counting only the distinct ones).

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

Adding to 122101111221212 its reverse (212122111101221), we get a palindrome (334223222322433).

The spelling of 122101111221212 in words is "one hundred twenty-two trillion, one hundred one billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twelve".