212012201998 has 8 divisors (see below), whose sum is σ = 331845185808. Its totient is φ = 101397140064.

The previous prime is 212012201923. The next prime is 212012202041. The reversal of 212012201998 is 899102210212.

212012201998 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304480411 + ... + 2304480502.

It is an arithmetic number, because the mean of its divisors is an integer number (41480648226).

Almost surely, 2^212012201998 is an apocalyptic number.

212012201998 is a deficient number, since it is larger than the sum of its proper divisors (119832983810).

212012201998 is a wasteful number, since it uses less digits than its factorization.

212012201998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608960938.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 212012201998 in words is "two hundred twelve billion, twelve million, two hundred one thousand, nine hundred ninety-eight".