122211211101021 has 192 divisors, whose sum is σ = 216138332467200. Its totient is φ = 65063620915200.

The previous prime is 122211211101017. The next prime is 122211211101037. The reversal of 122211211101021 is 120101112112221.

It is a happy number.

122211211101021 is a `hidden beast` number, since 122 + 211 + 211 + 101 + 0 + 21 = 666.

It is not a de Polignac number, because 122211211101021 - 2² = 122211211101017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122211211100985 and 122211211101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211211141021) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5993967495 + ... + 5993987883.

It is an arithmetic number, because the mean of its divisors is an integer number (1125720481600).

Almost surely, 2^{122211211101021} is an apocalyptic number.

It is an amenable number.

122211211101021 is a deficient number, since it is larger than the sum of its proper divisors (93927121366179).

122211211101021 is a wasteful number, since it uses less digits than its factorization.

122211211101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21340 (or 21337 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 122211211101021 its reverse (120101112112221), we get a palindrome (242312323213242).

The spelling of 122211211101021 in words is "one hundred twenty-two trillion, two hundred eleven billion, two hundred eleven million, one hundred one thousand, twenty-one".