120121212210102 has 24 divisors (see below), whose sum is σ = 260565609755880. Its totient is φ = 39993791254560.

The previous prime is 120121212210079. The next prime is 120121212210107. The reversal of 120121212210102 is 201012212121021.

120121212210102 is a `hidden beast` number, since 1 + 20 + 121 + 212 + 210 + 102 = 666.

It is a super-2 number, since 2×120121212210102² (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 (120121212210107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3884385399 + ... + 3884416322.

It is an arithmetic number, because the mean of its divisors is an integer number (10856900406495).

Almost surely, 2^{120121212210102} is an apocalyptic number.

120121212210102 is an abundant number, since it is smaller than the sum of its proper divisors (140444397545778).

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

120121212210102 is a wasteful number, since it uses less digits than its factorization.

120121212210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7768802588 (or 7768802585 counting only the distinct ones).

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

Adding to 120121212210102 its reverse (201012212121021), we get a palindrome (321133424331123).

The spelling of 120121212210102 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twelve million, two hundred ten thousand, one hundred two".