211202021100 has 144 divisors (see below), whose sum is σ = 739455671808. Its totient is φ = 45435048960.

The previous prime is 211202021039. The next prime is 211202021137. The reversal of 211202021100 is 1120202112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2922312 + ... + 2993711.

It is an arithmetic number, because the mean of its divisors is an integer number (5135108832).

Almost surely, 2^211202021100 is an apocalyptic number.

211202021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211202021100 is an abundant number, since it is smaller than the sum of its proper divisors (528253650708).

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

211202021100 is a wasteful number, since it uses less digits than its factorization.

211202021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916064 (or 5916057 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211202021100 its reverse (1120202112), we get a palindrome (212322223212).

The spelling of 211202021100 in words is "two hundred eleven billion, two hundred two million, twenty-one thousand, one hundred".