21301330412122 has 4 divisors (see below), whose sum is σ = 31951995618186. Its totient is φ = 10650665206060.

The previous prime is 21301330412053. The next prime is 21301330412123. The reversal of 21301330412122 is 22121403310312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15531961805721 + 5769368606401 = 3941061^2 + 2401951^2 .

It is a super-2 number, since 2×21301330412122² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21301330412123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325332603029 + ... + 5325332603032.

Almost surely, 2^{21301330412122} is an apocalyptic number.

21301330412122 is a deficient number, since it is larger than the sum of its proper divisors (10650665206064).

21301330412122 is a wasteful number, since it uses less digits than its factorization.

21301330412122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10650665206063.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21301330412122 its reverse (22121403310312), we get a palindrome (43422733722434).

The spelling of 21301330412122 in words is "twenty-one trillion, three hundred one billion, three hundred thirty million, four hundred twelve thousand, one hundred twenty-two".