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2220211131231 = 31013730572929
BaseRepresentation
bin100000010011101110111…
…001010101001101011111
321212020202022221101022110
4200103232321111031133
5242333443022144411
64415541221445103
7316255621143642
oct40235671251537
97766668841273
102220211131231
1178664a337025
122ba360270793
13131498c11ba2
147965ccd5a59
153cb459c52a6
hex204eee5535f

2220211131231 has 8 divisors (see below), whose sum is σ = 2963203804080. Its totient is φ = 1478679606272.

The previous prime is 2220211131217. The next prime is 2220211131263. The reversal of 2220211131231 is 1321311120222.

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

It is a cyclic number.

It is not a de Polignac number, because 2220211131231 - 215 = 2220211098463 is a prime.

It is a super-2 number, since 2×22202111312312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220211131198 and 2220211131207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220211131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365283426 + ... + 365289503.

It is an arithmetic number, because the mean of its divisors is an integer number (370400475510).

Almost surely, 22220211131231 is an apocalyptic number.

2220211131231 is a deficient number, since it is larger than the sum of its proper divisors (742992672849).

2220211131231 is a wasteful number, since it uses less digits than its factorization.

2220211131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730573945.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2220211131231 its reverse (1321311120222), we get a palindrome (3541522251453).

The spelling of 2220211131231 in words is "two trillion, two hundred twenty billion, two hundred eleven million, one hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 3 1013 3039 730572929 2191718787 740070377077 2220211131231