121202102111 has 8 divisors (see below), whose sum is σ = 121531465344. Its totient is φ = 120873069720.

The previous prime is 121202102083. The next prime is 121202102129. The reversal of 121202102111 is 111201202121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121202102111 - 2¹⁴ = 121202085727 is a prime.

It is a super-2 number, since 2×121202102111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202102141) 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, 659996 + ... + 823406.

It is an arithmetic number, because the mean of its divisors is an integer number (15191433168).

Almost surely, 2^121202102111 is an apocalyptic number.

121202102111 is a deficient number, since it is larger than the sum of its proper divisors (329363233).

121202102111 is a wasteful number, since it uses less digits than its factorization.

121202102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165421.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121202102111 its reverse (111201202121), we get a palindrome (232403304232).

The spelling of 121202102111 in words is "one hundred twenty-one billion, two hundred two million, one hundred two thousand, one hundred eleven".