121148447810 has 64 divisors (see below), whose sum is σ = 239738940000. Its totient is φ = 43802204160.

The previous prime is 121148447731. The next prime is 121148447891. The reversal of 121148447810 is 18744841121.

It can be written as a sum of positive squares in 16 ways, for example, as 17247306241 + 103901141569 = 131329^2 + 322337^2 .

It is a super-2 number, since 2×121148447810² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3572816 + ... + 3606564.

Almost surely, 2^121148447810 is an apocalyptic number.

121148447810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121148447810 is a deficient number, since it is larger than the sum of its proper divisors (118590492190).

121148447810 is a wasteful number, since it uses less digits than its factorization.

121148447810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34343.

The product of its (nonzero) digits is 57344, while the sum is 41.

The spelling of 121148447810 in words is "one hundred twenty-one billion, one hundred forty-eight million, four hundred forty-seven thousand, eight hundred ten".