211201001211998 has 16 divisors (see below), whose sum is σ = 362643768539520. Its totient is φ = 90368487475416.

The previous prime is 211201001211997. The next prime is 211201001212051. The reversal of 211201001211998 is 899112100102112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211201001211997) 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, 12185601836 + ... + 12185619167.

It is an arithmetic number, because the mean of its divisors is an integer number (22665235533720).

Almost surely, 2^{211201001211998} is an apocalyptic number.

211201001211998 is a deficient number, since it is larger than the sum of its proper divisors (151442767327522).

211201001211998 is a wasteful number, since it uses less digits than its factorization.

211201001211998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24371221631.

The product of its (nonzero) digits is 5184, while the sum is 38.

The spelling of 211201001211998 in words is "two hundred eleven trillion, two hundred one billion, one million, two hundred eleven thousand, nine hundred ninety-eight".