122111211210102 has 32 divisors (see below), whose sum is σ = 280715428072800. Its totient is φ = 39300159929184.

The previous prime is 122111211210077. The next prime is 122111211210103. The reversal of 122111211210102 is 201012112111221.

It is a happy number.

122111211210102 is a `hidden beast` number, since 1 + 221 + 11 + 211 + 210 + 10 + 2 = 666.

It is a super-2 number, since 2×122111211210102² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111211210103) 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, 38988252333 + ... + 38988255464.

It is an arithmetic number, because the mean of its divisors is an integer number (8772357127275).

Almost surely, 2^{122111211210102} is an apocalyptic number.

122111211210102 is an abundant number, since it is smaller than the sum of its proper divisors (158604216862698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122111211210102 is a wasteful number, since it uses less digits than its factorization.

122111211210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77976507837 (or 77976507831 counting only the distinct ones).

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

Adding to 122111211210102 its reverse (201012112111221), we get a palindrome (323123323321323).

The spelling of 122111211210102 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred eleven million, two hundred ten thousand, one hundred two".