1210121121102 has 16 divisors (see below), whose sum is σ = 2485654195152. Its totient is φ = 392471714880.

The previous prime is 1210121121059. The next prime is 1210121121119. The reversal of 1210121121102 is 2011211210121.

It is a happy number.

It is a super-2 number, since 2×1210121121102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2725497799 + ... + 2725498242.

It is an arithmetic number, because the mean of its divisors is an integer number (155353387197).

Almost surely, 2^{1210121121102} is an apocalyptic number.

1210121121102 is an abundant number, since it is smaller than the sum of its proper divisors (1275533074050).

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

1210121121102 is a wasteful number, since it uses less digits than its factorization.

1210121121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450996083.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1210121121102 its reverse (2011211210121), we get a palindrome (3221332331223).

The spelling of 1210121121102 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred two".