202122100212200 has 144 divisors (see below), whose sum is σ = 570517854148320. Its totient is φ = 65222593551360.

The previous prime is 202122100212181. The next prime is 202122100212233. The reversal of 202122100212200 is 2212001221202.

It is a happy number.

It is a super-3 number, since 3×202122100212200³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 249375554 + ... + 250184753.

Almost surely, 2^{202122100212200} is an apocalyptic number.

202122100212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122100212200 is an abundant number, since it is smaller than the sum of its proper divisors (368395753936120).

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

202122100212200 is a wasteful number, since it uses less digits than its factorization.

202122100212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499560364 (or 499560338 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202122100212200 its reverse (2212001221202), we get a palindrome (204334101433402).

The spelling of 202122100212200 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred million, two hundred twelve thousand, two hundred".