21013033042122 has 16 divisors (see below), whose sum is σ = 45846617546592. Its totient is φ = 6367585770320.

The previous prime is 21013033042117. The next prime is 21013033042123. The reversal of 21013033042122 is 22124033031012.

It is a junction number, because it is equal to n+sod(n) for n = 21013033042092 and 21013033042101.

It is not an unprimeable number, because it can be changed into a prime (21013033042123) 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, 159189644193 + ... + 159189644324.

It is an arithmetic number, because the mean of its divisors is an integer number (2865413596662).

Almost surely, 2^{21013033042122} is an apocalyptic number.

21013033042122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21013033042122 is an abundant number, since it is smaller than the sum of its proper divisors (24833584504470).

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

21013033042122 is a wasteful number, since it uses less digits than its factorization.

21013033042122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318379288533.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21013033042122 its reverse (22124033031012), we get a palindrome (43137066073134).

The spelling of 21013033042122 in words is "twenty-one trillion, thirteen billion, thirty-three million, forty-two thousand, one hundred twenty-two".