100121211000099 has 48 divisors (see below), whose sum is σ = 148707782181504. Its totient is φ = 64880983065600.

The previous prime is 100121211000089. The next prime is 100121211000191. The reversal of 100121211000099 is 990000112121001.

It is not a de Polignac number, because 100121211000099 - 2¹⁵ = 100121210967331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100121211000089) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57405247 + ... + 59123639.

It is an arithmetic number, because the mean of its divisors is an integer number (3098078795448).

Almost surely, 2^{100121211000099} is an apocalyptic number.

100121211000099 is a deficient number, since it is larger than the sum of its proper divisors (48586571181405).

100121211000099 is a wasteful number, since it uses less digits than its factorization.

100121211000099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719388 (or 1719385 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 100121211000099 in words is "one hundred trillion, one hundred twenty-one billion, two hundred eleven million, ninety-nine", and thus it is an aban number.