21121112301 has 8 divisors (see below), whose sum is σ = 28922604384. Its totient is φ = 13700180880.

The previous prime is 21121112279. The next prime is 21121112371. The reversal of 21121112301 is 10321112112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21121112301 - 2⁵ = 21121112269 is a prime.

It is a super-2 number, since 2×21121112301² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21121112371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95140035 + ... + 95140256.

It is an arithmetic number, because the mean of its divisors is an integer number (3615325548).

Almost surely, 2^21121112301 is an apocalyptic number.

It is an amenable number.

21121112301 is a deficient number, since it is larger than the sum of its proper divisors (7801492083).

21121112301 is a wasteful number, since it uses less digits than its factorization.

21121112301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190280331.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 21121112301 its reverse (10321112112), we get a palindrome (31442224413).

The spelling of 21121112301 in words is "twenty-one billion, one hundred twenty-one million, one hundred twelve thousand, three hundred one".