122121210210102 has 96 divisors (see below), whose sum is σ = 265667351040000. Its totient is φ = 40542564159360.

The previous prime is 122121210210091. The next prime is 122121210210107. The reversal of 122121210210102 is 201012012121221.

122121210210102 is a `hidden beast` number, since 1 + 22 + 121 + 210 + 210 + 102 = 666.

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 (122121210210107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25447217899 + ... + 25447222697.

It is an arithmetic number, because the mean of its divisors is an integer number (2767368240000).

Almost surely, 2^{122121210210102} is an apocalyptic number.

122121210210102 is an abundant number, since it is smaller than the sum of its proper divisors (143546140829898).

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

122121210210102 is a wasteful number, since it uses less digits than its factorization.

122121210210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9306 (or 9303 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122121210210102 its reverse (201012012121221), we get a palindrome (323133222331323).

The spelling of 122121210210102 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred ten million, two hundred ten thousand, one hundred two".