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1202132220221 = 171393491457683
BaseRepresentation
bin10001011111100100101…
…010011111100100111101
311020220220122212010020202
4101133210222133210331
5124143431322021341
62320130225253245
7152564646163352
oct21374452374475
94226818763222
101202132220221
11423904331769
12174b93794225
138948c27728a
144227d7a0629
152140beb979b
hex117e4a9f93d

1202132220221 has 16 divisors (see below), whose sum is σ = 1285677288000. Its totient is φ = 1120059525888.

The previous prime is 1202132220209. The next prime is 1202132220251. The reversal of 1202132220221 is 1220222312021.

It is not a de Polignac number, because 1202132220221 - 214 = 1202132203837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202132220193 and 1202132220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202132220251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95846 + ... + 1553528.

It is an arithmetic number, because the mean of its divisors is an integer number (80354830500).

Almost surely, 21202132220221 is an apocalyptic number.

It is an amenable number.

1202132220221 is a deficient number, since it is larger than the sum of its proper divisors (83545067779).

1202132220221 is a wasteful number, since it uses less digits than its factorization.

1202132220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458188.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1202132220221 its reverse (1220222312021), we get a palindrome (2422354532242).

The spelling of 1202132220221 in words is "one trillion, two hundred two billion, one hundred thirty-two million, two hundred twenty thousand, two hundred twenty-one".

Divisors: 1 17 139 349 2363 5933 48511 824687 1457683 24780611 202617937 508731367 3444504929 8648433239 70713660013 1202132220221