201211332102 has 24 divisors (see below), whose sum is σ = 475590421800. Its totient is φ = 60973130880.

The previous prime is 201211332097. The next prime is 201211332143. The reversal of 201211332102 is 201233112102.

201211332102 is a `hidden beast` number, since 20 + 1 + 211 + 332 + 102 = 666.

It is a super-2 number, since 2×201211332102² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 508109227 + ... + 508109622.

It is an arithmetic number, because the mean of its divisors is an integer number (19816267575).

Almost surely, 2^201211332102 is an apocalyptic number.

201211332102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201211332102 is an abundant number, since it is smaller than the sum of its proper divisors (274379089698).

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

201211332102 is a wasteful number, since it uses less digits than its factorization.

201211332102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016218868 (or 1016218865 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201211332102 its reverse (201233112102), we get a palindrome (402444444204).

The spelling of 201211332102 in words is "two hundred one billion, two hundred eleven million, three hundred thirty-two thousand, one hundred two".