22121421331434 has 16 divisors (see below), whose sum is σ = 44246426097888. Its totient is φ = 7373209871312.

The previous prime is 22121421331349. The next prime is 22121421331447. The reversal of 22121421331434 is 43413312412122.

It is a junction number, because it is equal to n+sod(n) for n = 22121421331395 and 22121421331404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149229537 + ... + 149377700.

It is an arithmetic number, because the mean of its divisors is an integer number (2765401631118).

Almost surely, 2^{22121421331434} is an apocalyptic number.

22121421331434 is an abundant number, since it is smaller than the sum of its proper divisors (22125004766454).

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

22121421331434 is a wasteful number, since it uses less digits than its factorization.

22121421331434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298619589.

The product of its digits is 27648, while the sum is 33.

Adding to 22121421331434 its reverse (43413312412122), we get a palindrome (65534733743556).

The spelling of 22121421331434 in words is "twenty-two trillion, one hundred twenty-one billion, four hundred twenty-one million, three hundred thirty-one thousand, four hundred thirty-four".