121111202010102 has 16 divisors (see below), whose sum is σ = 242230990456512. Its totient is φ = 40368969597320.

The previous prime is 121111202010101. The next prime is 121111202010103. The reversal of 121111202010102 is 201010202111121.

It is a happy number.

121111202010102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121111202010101) and next prime (121111202010103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111202010101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357584808 + ... + 357923339.

It is an arithmetic number, because the mean of its divisors is an integer number (15139436903532).

Almost surely, 2^{121111202010102} is an apocalyptic number.

121111202010102 is an abundant number, since it is smaller than the sum of its proper divisors (121119788446410).

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

121111202010102 is a wasteful number, since it uses less digits than its factorization.

121111202010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715536363.

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

Adding to 121111202010102 its reverse (201010202111121), we get a palindrome (322121404121223).

The spelling of 121111202010102 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred two million, ten thousand, one hundred two".