122211101121212 has 48 divisors (see below), whose sum is σ = 219903144983424. Its totient is φ = 59392770048000.

The previous prime is 122211101121181. The next prime is 122211101121217. The reversal of 122211101121212 is 212121101112221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211101121217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1615634912 + ... + 1615710552.

It is an arithmetic number, because the mean of its divisors is an integer number (4581315520488).

Almost surely, 2^{122211101121212} is an apocalyptic number.

It is an amenable number.

122211101121212 is a deficient number, since it is larger than the sum of its proper divisors (97692043862212).

122211101121212 is a wasteful number, since it uses less digits than its factorization.

122211101121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112310 (or 112308 counting only the distinct ones).

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

Adding to 122211101121212 its reverse (212121101112221), we get a palindrome (334332202233433).

The spelling of 122211101121212 in words is "one hundred twenty-two trillion, two hundred eleven billion, one hundred one million, one hundred twenty-one thousand, two hundred twelve".