121010021201100 has 36 divisors (see below), whose sum is σ = 350122328009384. Its totient is φ = 32269338986880.

The previous prime is 121010021201081. The next prime is 121010021201117. The reversal of 121010021201100 is 1102120010121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201683368369 + ... + 201683368968.

Almost surely, 2^{121010021201100} is an apocalyptic number.

121010021201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010021201100 is an abundant number, since it is smaller than the sum of its proper divisors (229112306808284).

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

121010021201100 is a wasteful number, since it uses less digits than its factorization.

121010021201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403366737354 (or 403366737347 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121010021201100 its reverse (1102120010121), we get a palindrome (122112141211221).

The spelling of 121010021201100 in words is "one hundred twenty-one trillion, ten billion, twenty-one million, two hundred one thousand, one hundred".