2122012211998 has 8 divisors (see below), whose sum is σ = 3637735220592. Its totient is φ = 909433805136.

The previous prime is 2122012211941. The next prime is 2122012211999. The reversal of 2122012211998 is 8991122102212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2122012211998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122012211999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75786150415 + ... + 75786150442.

It is an arithmetic number, because the mean of its divisors is an integer number (454716902574).

Almost surely, 2^{2122012211998} is an apocalyptic number.

2122012211998 is a deficient number, since it is larger than the sum of its proper divisors (1515723008594).

2122012211998 is a wasteful number, since it uses less digits than its factorization.

2122012211998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151572300866.

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

The spelling of 2122012211998 in words is "two trillion, one hundred twenty-two billion, twelve million, two hundred eleven thousand, nine hundred ninety-eight".