121101212232100 has 36 divisors (see below), whose sum is σ = 263199598905348. Its totient is φ = 48364914688000.

The previous prime is 121101212232083. The next prime is 121101212232101. The reversal of 121101212232100 is 1232212101121.

It can be written as a sum of positive squares in 6 ways, for example, as 8735996971584 + 112365215260516 = 2955672^2 + 10600246^2 .

It is not an unprimeable number, because it can be changed into a prime (121101212232101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 944563141 + ... + 944691340.

It is an arithmetic number, because the mean of its divisors is an integer number (7311099969593).

Almost surely, 2^{121101212232100} is an apocalyptic number.

121101212232100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121101212232100 is an abundant number, since it is smaller than the sum of its proper divisors (142098386673248).

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

121101212232100 is a wasteful number, since it uses less digits than its factorization.

121101212232100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889255136 (or 1889255129 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121101212232100 its reverse (1232212101121), we get a palindrome (122333424333221).

The spelling of 121101212232100 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred twelve million, two hundred thirty-two thousand, one hundred".