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1220200211012 = 221726191767187
BaseRepresentation
bin10001110000011001100…
…110011010001001000100
311022122112211222011002212
4101300121212122021010
5124442432223223022
62332315141122552
7154104461443346
oct21603146321104
94278484864085
101220200211012
11430536232662
121785966b9458
138b0ab5c19a3
14430b5249296
1521b183033e2
hex11c1999a244

1220200211012 has 12 divisors (see below), whose sum is σ = 2135363947920. Its totient is φ = 610096225896.

The previous prime is 1220200211011. The next prime is 1220200211053. The reversal of 1220200211012 is 2101120020221.

It is not an unprimeable number, because it can be changed into a prime (1220200211011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193118 + ... + 1574069.

It is an arithmetic number, because the mean of its divisors is an integer number (177946995660).

Almost surely, 21220200211012 is an apocalyptic number.

It is an amenable number.

1220200211012 is a deficient number, since it is larger than the sum of its proper divisors (915163736908).

1220200211012 is a wasteful number, since it uses less digits than its factorization.

1220200211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939810 (or 1939808 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220200211012 its reverse (2101120020221), we get a palindrome (3321320231233).

The spelling of 1220200211012 in words is "one trillion, two hundred twenty billion, two hundred million, two hundred eleven thousand, twelve".

Divisors: 1 2 4 172619 345238 690476 1767187 3534374 7068748 305050052753 610100105506 1220200211012