99148212121 has 8 divisors (see below), whose sum is σ = 113315222720. Its totient is φ = 84981946608.

The previous prime is 99148212083. The next prime is 99148212179. The reversal of 99148212121 is 12121284199.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99148212121 is a prime.

It is a super-2 number, since 2×99148212121² (a number of 23 digits) contains 22 as substring.

99148212121 is a modest number, since divided by 212121 gives 99148 as remainder.

It is not an unprimeable number, because it can be changed into a prime (99148212421) 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, 136075 + ... + 465631.

It is an arithmetic number, because the mean of its divisors is an integer number (14164402840).

Almost surely, 2^99148212121 is an apocalyptic number.

It is an amenable number.

99148212121 is a deficient number, since it is larger than the sum of its proper divisors (14167010599).

99148212121 is a wasteful number, since it uses less digits than its factorization.

99148212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372543.

The product of its digits is 20736, while the sum is 40.

The spelling of 99148212121 in words is "ninety-nine billion, one hundred forty-eight million, two hundred twelve thousand, one hundred twenty-one".