121020101121100 has 36 divisors (see below), whose sum is σ = 262657839213000. Its totient is φ = 48399889336960.

The previous prime is 121020101121047. The next prime is 121020101121137. The reversal of 121020101121100 is 1121101020121.

It is a happy number.

It is a super-2 number, since 2×121020101121100² (a number of 29 digits) contains 22 as substring.

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, 101292025 + ... + 102479824.

It is an arithmetic number, because the mean of its divisors is an integer number (7296051089250).

Almost surely, 2^{121020101121100} is an apocalyptic number.

121020101121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020101121100 is an abundant number, since it is smaller than the sum of its proper divisors (141637738091900).

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

121020101121100 is a wasteful number, since it uses less digits than its factorization.

121020101121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203777802 (or 203777795 counting only the distinct ones).

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

Adding to 121020101121100 its reverse (1121101020121), we get a palindrome (122141202141221).

The spelling of 121020101121100 in words is "one hundred twenty-one trillion, twenty billion, one hundred one million, one hundred twenty-one thousand, one hundred".