121012101001200 has 60 divisors (see below), whose sum is σ = 387642096877688. Its totient is φ = 32269893600000.

The previous prime is 121012101001177. The next prime is 121012101001201. The reversal of 121012101001200 is 2100101210121.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012101001201) 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, 50421707551 + ... + 50421709950.

Almost surely, 2^{121012101001200} is an apocalyptic number.

121012101001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012101001200 is an abundant number, since it is smaller than the sum of its proper divisors (266629995876488).

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

121012101001200 is a wasteful number, since it uses less digits than its factorization.

121012101001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100843417522 (or 100843417511 counting only the distinct ones).

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

Adding to 121012101001200 its reverse (2100101210121), we get a palindrome (123112202211321).

The spelling of 121012101001200 in words is "one hundred twenty-one trillion, twelve billion, one hundred one million, one thousand, two hundred".