121201001211100 has 18 divisors (see below), whose sum is σ = 263006172628304. Its totient is φ = 48480400484400.

The previous prime is 121201001211091. The next prime is 121201001211113. The reversal of 121201001211100 is 1112100102121.

It is a happy number.

121201001211100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606005005956 + ... + 606005006155.

Almost surely, 2^{121201001211100} is an apocalyptic number.

121201001211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201001211100 is an abundant number, since it is smaller than the sum of its proper divisors (141805171417204).

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

121201001211100 is a wasteful number, since it uses less digits than its factorization.

121201001211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212010012125 (or 1212010012118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121201001211100 its reverse (1112100102121), we get a palindrome (122313101313221).

The spelling of 121201001211100 in words is "one hundred twenty-one trillion, two hundred one billion, one million, two hundred eleven thousand, one hundred".