121011101200 has 60 divisors (see below), whose sum is σ = 317159106768. Its totient is φ = 44004035200.

The previous prime is 121011101177. The next prime is 121011101273. The reversal of 121011101200 is 2101110121.

It is a super-2 number, since 2×121011101200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13746862 + ... + 13755661.

Almost surely, 2^121011101200 is an apocalyptic number.

121011101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011101200 is an abundant number, since it is smaller than the sum of its proper divisors (196148005568).

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

121011101200 is a wasteful number, since it uses less digits than its factorization.

121011101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27502552 (or 27502541 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121011101200 its reverse (2101110121), we get a palindrome (123112211321).

The spelling of 121011101200 in words is "one hundred twenty-one billion, eleven million, one hundred one thousand, two hundred".