201421324234122 has 16 divisors (see below), whose sum is σ = 412211082154080. Its totient is φ = 65579035797072.

The previous prime is 201421324234121. The next prime is 201421324234171. The reversal of 201421324234122 is 221432423124102.

It is a super-2 number, since 2×201421324234122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201421324234121) 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, 390351403297 + ... + 390351403812.

It is an arithmetic number, because the mean of its divisors is an integer number (25763192634630).

Almost surely, 2^{201421324234122} is an apocalyptic number.

201421324234122 is an abundant number, since it is smaller than the sum of its proper divisors (210789757919958).

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

201421324234122 is a wasteful number, since it uses less digits than its factorization.

201421324234122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780702807157.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 201421324234122 its reverse (221432423124102), we get a palindrome (422853747358224).

The spelling of 201421324234122 in words is "two hundred one trillion, four hundred twenty-one billion, three hundred twenty-four million, two hundred thirty-four thousand, one hundred twenty-two".