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1222012210012 = 221128949959377
BaseRepresentation
bin10001110010000101100…
…110101000101101011100
311022211020010120020102221
4101302011212220231130
5130010140111210022
62333215030355124
7154200413254306
oct21620546505534
94284203506387
101222012210012
114312860422a0
12178a014bbaa4
138b309b23449
1443207b66976
1521bc242bcc7
hex11c859a8b5c

1222012210012 has 24 divisors (see below), whose sum is σ = 2333015420400. Its totient is φ = 555440328960.

The previous prime is 1222012209997. The next prime is 1222012210039. The reversal of 1222012210012 is 2100122102221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794068 + ... + 1753444.

It is an arithmetic number, because the mean of its divisors is an integer number (97208975850).

Almost surely, 21222012210012 is an apocalyptic number.

It is an amenable number.

1222012210012 is a deficient number, since it is larger than the sum of its proper divisors (1111003210388).

1222012210012 is a wasteful number, since it uses less digits than its factorization.

1222012210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988341 (or 988339 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222012210012 its reverse (2100122102221), we get a palindrome (3322134312233).

The spelling of 1222012210012 in words is "one trillion, two hundred twenty-two billion, twelve million, two hundred ten thousand, twelve".

Divisors: 1 2 4 11 22 44 28949 57898 115796 318439 636878 959377 1273756 1918754 3837508 10553147 21106294 42212588 27773004773 55546009546 111092019092 305503052503 611006105006 1222012210012