121012010192 has 40 divisors (see below), whose sum is σ = 254762146560. Its totient is φ = 55472394240.

The previous prime is 121012010177. The next prime is 121012010201. The reversal of 121012010192 is 291010210121.

It is a super-2 number, since 2×121012010192² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6410993 + ... + 6429840.

It is an arithmetic number, because the mean of its divisors is an integer number (6369053664).

Almost surely, 2^121012010192 is an apocalyptic number.

It is an amenable number.

121012010192 is an abundant number, since it is smaller than the sum of its proper divisors (133750136368).

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

121012010192 is a wasteful number, since it uses less digits than its factorization.

121012010192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12840891 (or 12840885 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 121012010192 in words is "one hundred twenty-one billion, twelve million, ten thousand, one hundred ninety-two".