122211021212011 has 4 divisors (see below), whose sum is σ = 122247909540472. Its totient is φ = 122174132883552.

The previous prime is 122211021212003. The next prime is 122211021212069. The reversal of 122211021212011 is 110212120112221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122211021212011 - 2³ = 122211021212003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122211021212011.

It is not an unprimeable number, because it can be changed into a prime (122211021210011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18444159261 + ... + 18444165886.

It is an arithmetic number, because the mean of its divisors is an integer number (30561977385118).

Almost surely, 2^{122211021212011} is an apocalyptic number.

122211021212011 is a deficient number, since it is larger than the sum of its proper divisors (36888328461).

122211021212011 is an equidigital number, since it uses as much as digits as its factorization.

122211021212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36888328460.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122211021212011 its reverse (110212120112221), we get a palindrome (232423141324232).

The spelling of 122211021212011 in words is "one hundred twenty-two trillion, two hundred eleven billion, twenty-one million, two hundred twelve thousand, eleven".