121211101110102 has 16 divisors (see below), whose sum is σ = 248059927853760. Its totient is φ = 39464079431112.

The previous prime is 121211101110101. The next prime is 121211101110131. The reversal of 121211101110102 is 201011101112121.

It is a super-3 number, since 3×121211101110102³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211101110101) 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, 234905234452 + ... + 234905234967.

It is an arithmetic number, because the mean of its divisors is an integer number (15503745490860).

Almost surely, 2^{121211101110102} is an apocalyptic number.

121211101110102 is an abundant number, since it is smaller than the sum of its proper divisors (126848826743658).

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

121211101110102 is a wasteful number, since it uses less digits than its factorization.

121211101110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469810469467.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121211101110102 its reverse (201011101112121), we get a palindrome (322222202222223).

The spelling of 121211101110102 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred one million, one hundred ten thousand, one hundred two".