211121220002 has 96 divisors (see below), whose sum is σ = 425505208320. Its totient is φ = 76111630560.

The previous prime is 211121219999. The next prime is 211121220007. The reversal of 211121220002 is 200022121112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (211121220007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5390663 + ... + 5429685.

It is an arithmetic number, because the mean of its divisors is an integer number (4432345920).

Almost surely, 2^211121220002 is an apocalyptic number.

211121220002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211121220002 is an abundant number, since it is smaller than the sum of its proper divisors (214383988318).

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

211121220002 is a wasteful number, since it uses less digits than its factorization.

211121220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39148 (or 39105 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211121220002 its reverse (200022121112), we get a palindrome (411143341114).

The spelling of 211121220002 in words is "two hundred eleven billion, one hundred twenty-one million, two hundred twenty thousand, two".