212020110100 has 36 divisors (see below), whose sum is σ = 461122298784. Its totient is φ = 84616586080.

The previous prime is 212020110089. The next prime is 212020110109. The reversal of 212020110100 is 1011020212.

It is a super-2 number, since 2×212020110100² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020110109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2348704 + ... + 2437303.

It is an arithmetic number, because the mean of its divisors is an integer number (12808952744).

Almost surely, 2^212020110100 is an apocalyptic number.

212020110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020110100 is an abundant number, since it is smaller than the sum of its proper divisors (249102188684).

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

212020110100 is a wasteful number, since it uses less digits than its factorization.

212020110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786464 (or 4786457 counting only the distinct ones).

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

Adding to 212020110100 its reverse (1011020212), we get a palindrome (213031130312).

The spelling of 212020110100 in words is "two hundred twelve billion, twenty million, one hundred ten thousand, one hundred".