21201422342100 has 288 divisors, whose sum is σ = 82362337806336. Its totient is φ = 4066606425600.

The previous prime is 21201422342099. The next prime is 21201422342129. The reversal of 21201422342100 is 124322410212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35000104 + ... + 35600703.

Almost surely, 2^{21201422342100} is an apocalyptic number.

21201422342100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21201422342100 is an abundant number, since it is smaller than the sum of its proper divisors (61160915464236).

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

21201422342100 is a wasteful number, since it uses less digits than its factorization.

21201422342100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70600855 (or 70600848 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21201422342100 its reverse (124322410212), we get a palindrome (21325744752312).

The spelling of 21201422342100 in words is "twenty-one trillion, two hundred one billion, four hundred twenty-two million, three hundred forty-two thousand, one hundred".