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12220022001021 = 38945767872663
BaseRepresentation
bin1011000111010011001000…
…0100100000110101111101
31121021020000100021211021020
42301310302010200311331
53100203101113013041
641553444533054353
72400603352115232
oct261646204406575
947236010254236
1012220022001021
11399153393178a
1214543a47873b9
136a845cb1a833
14303648c71789
15162d0e009866
hexb1d32120d7d

12220022001021 has 8 divisors (see below), whose sum is σ = 16476434159040. Its totient is φ = 8055145588512.

The previous prime is 12220022000969. The next prime is 12220022001037. The reversal of 12220022001021 is 12010022002221.

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

It is not a de Polignac number, because 12220022001021 - 218 = 12220021738877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220022001521) 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, 22883936065 + ... + 22883936598.

It is an arithmetic number, because the mean of its divisors is an integer number (2059554269880).

Almost surely, 212220022001021 is an apocalyptic number.

It is an amenable number.

12220022001021 is a deficient number, since it is larger than the sum of its proper divisors (4256412158019).

12220022001021 is an equidigital number, since it uses as much as digits as its factorization.

12220022001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45767872755.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12220022001021 its reverse (12010022002221), we get a palindrome (24230044003242).

The spelling of 12220022001021 in words is "twelve trillion, two hundred twenty billion, twenty-two million, one thousand, twenty-one".

Divisors: 1 3 89 267 45767872663 137303617989 4073340667007 12220022001021