20021210201100 has 36 divisors (see below), whose sum is σ = 57928034849384. Its totient is φ = 5338989386880.

The previous prime is 20021210201089. The next prime is 20021210201119. The reversal of 20021210201100 is 110201212002.

It is a super-3 number, since 3×20021210201100³ (a number of 41 digits) contains 333 as substring.

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 11 ways as a sum of consecutive naturals, for example, 33368683369 + ... + 33368683968.

Almost surely, 2^{20021210201100} is an apocalyptic number.

20021210201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20021210201100 is an abundant number, since it is smaller than the sum of its proper divisors (37906824648284).

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

20021210201100 is a wasteful number, since it uses less digits than its factorization.

20021210201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66737367354 (or 66737367347 counting only the distinct ones).

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

Adding to 20021210201100 its reverse (110201212002), we get a palindrome (20131411413102).

The spelling of 20021210201100 in words is "twenty trillion, twenty-one billion, two hundred ten million, two hundred one thousand, one hundred".