912121220101 has 8 divisors (see below), whose sum is σ = 1122610732544. Its totient is φ = 721678327920.

The previous prime is 912121220083. The next prime is 912121220113. The reversal of 912121220101 is 101022121219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 912121220101 - 2¹¹ = 912121218053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912121220141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5011654965 + ... + 5011655146.

It is an arithmetic number, because the mean of its divisors is an integer number (140326341568).

Almost surely, 2^912121220101 is an apocalyptic number.

912121220101 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

912121220101 is a deficient number, since it is larger than the sum of its proper divisors (210489512443).

912121220101 is a wasteful number, since it uses less digits than its factorization.

912121220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10023310131.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 912121220101 in words is "nine hundred twelve billion, one hundred twenty-one million, two hundred twenty thousand, one hundred one".