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1220211111022 = 2863577064923
BaseRepresentation
bin10001110000011010001…
…111111111010001101110
311022122120121110221002221
4101300122033333101232
5124442443021023042
62332320210505554
7154104653211661
oct21603217772156
94278517427087
101220211111022
114305413a7a32
1217859a2952ba
138b0b093a0b7
14430b68856d8
1521b19257d67
hex11c1a3ff46e

1220211111022 has 8 divisors (see below), whose sum is σ = 1830338120376. Its totient is φ = 610098404232.

The previous prime is 1220211111017. The next prime is 1220211111071. The reversal of 1220211111022 is 2201111120221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1220211110987 and 1220211111005.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3359748 + ... + 3705175.

It is an arithmetic number, because the mean of its divisors is an integer number (228792265047).

Almost surely, 21220211111022 is an apocalyptic number.

1220211111022 is a deficient number, since it is larger than the sum of its proper divisors (610127009354).

1220211111022 is an equidigital number, since it uses as much as digits as its factorization.

1220211111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7151282.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1220211111022 its reverse (2201111120221), we get a palindrome (3421322231243).

The spelling of 1220211111022 in words is "one trillion, two hundred twenty billion, two hundred eleven million, one hundred eleven thousand, twenty-two".

Divisors: 1 2 86357 172714 7064923 14129846 610105555511 1220211111022