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1220112210022 = 21915378359387
BaseRepresentation
bin10001110000010100010…
…110101101100001100110
311022122022201101020102221
4101300110112231201212
5124442242211210042
62332302315022554
7154102342444606
oct21602426554146
94278281336387
101220112210022
114304a0597172
1217857113aa5a
138b0962bc8b4
14430a769cc06
1521b1071dd67
hex11c145ad866

1220112210022 has 16 divisors (see below), whose sum is σ = 1839815534592. Its totient is φ = 606840591880.

The previous prime is 1220112210019. The next prime is 1220112210029. The reversal of 1220112210022 is 2200122110221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220112209978 and 1220112210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220112210029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20515413 + ... + 20574799.

It is an arithmetic number, because the mean of its divisors is an integer number (114988470912).

Almost surely, 21220112210022 is an apocalyptic number.

1220112210022 is a deficient number, since it is larger than the sum of its proper divisors (619703324570).

1220112210022 is a wasteful number, since it uses less digits than its factorization.

1220112210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113363.

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

Adding to 1220112210022 its reverse (2200122110221), we get a palindrome (3420234320243).

The spelling of 1220112210022 in words is "one trillion, two hundred twenty billion, one hundred twelve million, two hundred ten thousand, twenty-two".

Divisors: 1 2 191 382 53783 59387 107566 118774 10272553 11342917 20545106 22685834 3194011021 6388022042 610056105011 1220112210022