211211101201000 has 512 divisors, whose sum is σ = 514164484753920. Its totient is φ = 81168003072000.

The previous prime is 211211101200977. The next prime is 211211101201003. The reversal of 211211101201000 is 102101112112.

It is a happy number.

It is a super-2 number, since 2×211211101201000² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211101201003) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 257260780590 + ... + 257260781410.

It is an arithmetic number, because the mean of its divisors is an integer number (1004227509285).

Almost surely, 2^{211211101201000} is an apocalyptic number.

211211101201000 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 211211101201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257082242376960).

211211101201000 is an abundant number, since it is smaller than the sum of its proper divisors (302953383552920).

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

211211101201000 is a wasteful number, since it uses less digits than its factorization.

211211101201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1448 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211211101201000 its reverse (102101112112), we get a palindrome (211313202313112).

The spelling of 211211101201000 in words is "two hundred eleven trillion, two hundred eleven billion, one hundred one million, two hundred one thousand".