121144200111120 has 80 divisors (see below), whose sum is σ = 375562260905472. Its totient is φ = 32303809013760.

The previous prime is 121144200111091. The next prime is 121144200111133. The reversal of 121144200111120 is 21111002441121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×121144200111120³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4308937 + ... + 16151016.

Almost surely, 2^{121144200111120} is an apocalyptic number.

121144200111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121144200111120 is an abundant number, since it is smaller than the sum of its proper divisors (254418060794352).

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

121144200111120 is a wasteful number, since it uses less digits than its factorization.

121144200111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20484640 (or 20484634 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121144200111120 its reverse (21111002441121), we get a palindrome (142255202552241).

The spelling of 121144200111120 in words is "one hundred twenty-one trillion, one hundred forty-four billion, two hundred million, one hundred eleven thousand, one hundred twenty".