211201201000 has 128 divisors (see below), whose sum is σ = 503794287360. Its totient is φ = 82858080000.

The previous prime is 211201200997. The next prime is 211201201009. The reversal of 211201201000 is 102102112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (211201201009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10797229 + ... + 10816771.

It is an arithmetic number, because the mean of its divisors is an integer number (3935892870).

Almost surely, 2^211201201000 is an apocalyptic number.

211201201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211201201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251897143680).

211201201000 is an abundant number, since it is smaller than the sum of its proper divisors (292593086360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211201201000 is a wasteful number, since it uses less digits than its factorization.

211201201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19772 (or 19758 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 211201201000 its reverse (102102112), we get a palindrome (211303303112).

The spelling of 211201201000 in words is "two hundred eleven billion, two hundred one million, two hundred one thousand".